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Published July 12, 2026. Updated October 10, 2026.

This guide compares trial windows, return terms, and warranty fine print rather than making medical claims about sleep. Comfort and support needs vary by body type and by any existing back, hip, or joint condition. If you have chronic pain or a diagnosed spine issue, talk with your doctor or a physical therapist first. Ask about the firmness and support level that’s right for you before buying any mattress.

The real risk in buying a mattress in a box isn’t the mattress — it’s the return. Nectar, Casper, and Purple all advertise months of risk-free sleep trials. But “risk-free” is doing a lot of work in that sentence. There are minimum nights you have to sleep on it before you can even ask for a refund. Freight charges get quietly deducted from what comes back to your card. And warranty terms can be voided by a single coffee stain. Read the fine print before you buy, not after a bad night’s sleep forces you to.

Which mattress is the safest buy: Nectar, Casper, or Purple?

The quick verdict: the Nectar Mattress is the safest buy on paper. Its 365-night trial and lifetime warranty give you by far the longest window to change your mind. But that only holds as long as you never let it get stained. The Casper Original is the most straightforwardly consumer-friendly on returns. It offers a fully free pickup and the lowest sagging threshold for a valid warranty claim of the three. The Purple Mattress is the one genuine dealbreaker case. Its 100-day trial deducts real freight costs from your refund. That changes the math if you’re on the fence about keeping it.

I’ve shopped for and returned plenty of home goods over the years. Living somewhere warm and humid taught me to read return and warranty terms closely before buying anything. A humid climate turns a small stain into a fast way to void a warranty.

Nectar vs Casper vs Purple: Which Mattress Trial Is Safest?

The short answer: the Nectar Mattress wins on trial length and warranty duration. Casper Original wins on return simplicity. The Purple Mattress is the one with a real return fee to plan for.

Category	Pick	Why
Safest trial overall	Nectar Mattress	365 nights is triple Casper’s or Purple’s window, with no freight deduction on a return.
Easiest return process	Casper Original	Free pickup, no fees, and the shortest 30-night wait before you can start one.
Biggest returns dealbreaker	Purple Mattress	The only one of the three that subtracts a transportation charge from your refund.
Most forgiving warranty claim threshold	Casper Original and Purple Mattress (tie)	Both count a 1-inch indentation as a valid sag claim, versus Nectar’s 1.5-inch bar.
Easiest warranty to accidentally void	Nectar Mattress	Any visible stain, even a small one, voids the lifetime coverage outright.

How does the Nectar, Casper, and Purple mattress feel?

Memory foam gives the Nectar Mattress its hug. Zoned foam gives the Casper Original a firmer-then-softer feel, while a breathable gel grid lets the Purple Mattress flex. The Nectar Mattress leans into a classic memory-foam hug that cradles hips and shoulders and isolates motion well for couples. The Casper Original uses zoned foam that’s firmer under the hips and softer under the shoulders. That gives it a neutral, position-flexible feel rather than a strong hug. The Purple Mattress swaps foam for a hyper-elastic gel grid that flexes under pressure points. It breathes far better than solid foam, which is why it’s the pick for hot sleepers.

None of the three is objectively “best” at feel — they’re built for different bodies and different rooms. What actually separates them, once you’ve decided you like the feel, is what happens if you don’t. That means whether you can send it back and what you get back. It also means what quietly cancels your warranty years down the line. That’s the part most comparisons skip.

Dealbreaker: the trial has a floor, not just a ceiling

“365-night trial” sounds like you can return the mattress on night two if you hate it. In practice, none of the three lets you do that. Nectar accepts return requests on opened mattresses only between 30 and 365 days after delivery, per the Trial Policies page on nectarsleep.com, read October 10, 2026. An unopened box can go back immediately, but once it’s out of the packaging you’re locked in for a month. Casper requires a 30-night “adjustment period” before it will process any return at all, stated directly in Casper’s trial terms. Purple sets the floor even more explicitly. Its return policy requires at least 21 nights of sleep before you can start a return. Purple states this is because your body needs time to adjust.

Survivor: none of the three avoids a floor entirely. But Purple’s 21-night minimum is the shortest wait if you’re eager to know if a bed is wrong for you.

Dealbreaker: “free” return doesn’t always mean a full refund

Casper’s return policy states plainly that returns are free. There are no restocking, pickup, or processing fees, and a courier collects the mattress at no cost. Nectar’s return terms don’t mention any return fee either. Purple is the outlier. The refund subtracts “the value of any discount, interest accrued, and transportation charges” for pickup. That’s capped at Purple’s standard freight rate.

Survivors: Nectar and Casper. Purple is the one to budget for if there’s a real chance you’ll send it back.

Dealbreaker: a single stain voids the whole warranty

All three warranties exclude damage from stains, but they don’t treat stains equally. Nectar’s warranty terms require the mattress to be free of stains, full stop. Even a minor one can invalidate the entire lifetime warranty, not just the affected area. Casper’s warranty excludes “stains caused by abuse” specifically, a narrower and more defensible standard. Purple requires the mattress to be clean with its law tag intact and photographed before any warranty or return claim. Per Purple’s stated process, that functionally means the same zero-tolerance-for-stains rule, just enforced through documentation instead of a blanket clause.

Survivor: Casper’s narrower “abuse” wording is marginally more forgiving on paper. But in practice, a mattress protector is the real fix for all three.

Dealbreaker: The Wrong Bed Frame Can Void Your Warranty

Nectar, Casper, and Purple all write bed-frame rules into their warranties. The wrong frame can void coverage before you’ve slept on the mattress once. Nectar’s warranty specifically requires slatted frames to have no more than 3 inches of space between slats. Sagging caused by inadequate support isn’t covered. Purple’s warranty is stricter still, requiring a firm, solid-surface, non-spring foundation or adjustable base with proper center support. An old box spring or a widely slatted frame can void coverage outright, per Purple’s own warranty terms. Casper’s warranty ties coverage to “an improper or unsupportive foundation” more generally, without publishing a specific slat-spacing number.

Survivor: none, really — all three make your bed frame part of the warranty contract. Check your frame’s slat spacing against the mattress brand’s stated minimum before the mattress ever arrives.

Dealbreaker: sagging has to hit a specific depth before it counts

This number decides whether a claim gets approved. Casper’s warranty defines a covered defect as a visible indentation greater than 1 inch. That indentation must not be caused by an unsupportive foundation. Purple’s warranty uses the identical 1-inch threshold, explicitly excluding indentations under that depth as normal wear. Nectar sets a higher bar. Its warranty terms require an impression deeper than 1.5 inches before a sagging claim qualifies. That means a Nectar mattress has to sag noticeably more than a Casper or Purple before you’re covered.

Survivors: Casper and Purple, tied — their lower 1-inch threshold makes a legitimate sagging claim easier to win.

Which Survives the Most Dealbreakers: Nectar, Casper, or Purple?

Add it up and Casper Original clears the most dealbreakers cleanly. It wins on free returns, the shortest true out-of-pocket risk, and the lower 1-inch sag threshold. Nectar Mattress wins on raw trial length and warranty duration. But it loses points on its stricter stain clause and higher sag threshold. It’s the pick if you’re confident you’ll keep it and mostly want a long window as insurance. Purple Mattress is the honest outlier: nothing here disqualifies it. But the freight deduction on returns is the one line item worth budgeting for before you buy. That matters especially if the unusual grid feel is a gamble for you.

Nectar vs Casper vs Purple: Warranty and Returns Side by Side

Attribute	Nectar Mattress	Casper Original	Purple Mattress
Trial length	365 nights	100 nights	100 calendar days
Minimum use before return	30 days if opened (immediate if unopened)	30-night adjustment period	21 nights minimum sleep
Return fee	None stated	None — free pickup	Transportation charge deducted from refund
Warranty length	Lifetime, non-prorated	10 years, non-prorated	10 years, non-prorated (transport costs apply after 100 days)
Sag depth to qualify for a claim	Over 1.5 inches	Over 1 inch	Over 1 inch
Fastest way to void it	Any visible stain	Stains, burns, cuts, or an unsupportive foundation	Missing law tag, non-solid foundation, or UV exposure

Best mattress company customer service

Casper posts the clearest support hours of the three. Its contact page lists phone, chat and email, 9am to 9pm EST on weekdays. Weekends run 9am to 6pm. Nectar promises the most. Its FAQ says sleep specialists are “available 24/7” by chat, email or phone. The same page says the support team is “available 7 days a week,” so round-the-clock means the specialists. Purple keeps the shortest phone hours: Monday to Saturday, 8am to 6pm Mountain Time, per Purple’s contact page.

Brand	Trial	Return process and fees	Warranty	Support
Nectar	365 nights	Contact Nectar to start; photos may be needed; free in the contiguous US	As long as you own it; $50 shipping each way after year 10 unless a defect is confirmed	Chat, email, phone 1-888-425-4854 for returns
Casper	100 nights, after a 30-night adjustment period	Free; refund credited within two weeks	10 years	Phone 1-888-498-0003, chat, email; 9am–9pm EST weekdays, 9am–6pm weekends
Purple	100 calendar days, 21-night minimum	Clean with law tag, photos required; refund minus discounts, interest and freight	10 years; transport costs yours after day 100	Phone 888-848-8456, Mon–Sat 8am–6pm MT; chat; info@purple.com

Nectar has the longest terms on both counts. Its trial runs 365 nights against 100 for the other two. Nectar’s warranty policy covers the mattress for as long as you own it. Casper and Purple stop at 10 years. Casper alone puts a refund deadline in writing. Its Return Center page says two weeks.

How We Compared Nectar, Casper, and Purple’s Policies

We built this from each brand’s own published trial, return, and warranty terms. We did not rely on feel alone, since the fine print is what actually determines your financial risk. Every figure in the table above was checked against Nectar’s, Casper’s, and Purple’s current policy pages this month. That covers trial length, minimum nights before a return, return fees, warranty length, sag thresholds, and voiding conditions. These terms change over time, which is why we checked them again. Our full approach to sourcing and fact-checking is on our editorial standards page.

We deliberately didn’t pick a single “best mattress,” because feel preference and sleep position still matter more than any warranty clause once you’ve decided you can live with the return terms. Once your bed is sorted, the right sheets matter too — see our sheet fabric comparison for the next step. More comparisons live in Home & Living.

Prices are approximate, current as of publication, and change frequently — confirm the latest price with the retailer before buying.

Frequently Asked Questions About Nectar, Casper, and Purple

How many nights before I can return a mattress?

Purple requires the shortest wait at 21 nights. Casper and Nectar both effectively ask for about 30 days. Casper does this through its stated adjustment period. Nectar does it by not accepting opened-mattress return requests until day 30. None of the three processes a return the day it arrives.

Does Purple really charge me to return a mattress I don’t want?

Yes — Purple’s own return policy subtracts a fee from the refund. That fee covers any discount, accrued interest, and a transportation charge capped at Purple’s standard freight rate. Nectar and Casper do not deduct a comparable fee from returns, based on their published policies.

What’s the fastest way to accidentally void my warranty?

A stain, on any of the three. Nectar’s warranty is the strictest, voiding lifetime coverage for any visible staining regardless of size. Casper and Purple both exclude stain damage too, so a waterproof mattress protector is the cheapest insurance you can buy alongside any of these beds.

Do I need a special bed frame for these mattresses?

All three require firm, even support, but the specifics differ. Nectar’s warranty requires slats spaced no more than 3 inches apart. Purple’s warranty is stricter, requiring a solid, non-spring foundation with proper center support. Check your frame against the brand’s published requirement before your mattress arrives, since an unsupportive frame can void coverage on any of the three.

How long does a boxed mattress take to expand?

Most expand substantially within a few hours and reach full shape within a day or two. It’s fine to sleep on it the first night in most cases, though letting it fully decompress and air out first helps it reach its intended feel and reduces any initial off-gassing smell.

Nectar, Casper, or Purple: Which Should You Buy?

I’ve lived through enough humid summers to know what they do to a mattress, so the Casper Original is the one I’d point a friend to — its free returns and lower sag threshold beat the rest. Choose the Nectar Mattress if you want the longest possible trial and a lifetime warranty and you’re disciplined about keeping it stain-free. Pick the Casper Original if you want the cleanest, fee-free return process and the most forgiving sag threshold if a claim ever comes up. Choose the Purple Mattress if its cooling grid is the feel you actually want and you’ve budgeted for the freight deduction as the cost of trying it. Whichever you pick, check your bed frame’s slat spacing against the brand’s warranty requirement before the box ever arrives — it’s the dealbreaker nobody thinks to check first.

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Published July 12, 2026. Prices and specs checked September 1, 2026.

Percale vs sateen vs bamboo sheets starts with a fact: thread count has no legal definition in the United States. The FTC’s textile labelling rules require a sheet package to carry three things, and thread count is not one of them. On the five-axis tally below, the L.L.Bean 280-Thread-Count Pima Cotton Percale set finishes first at 56.0 out of 100, ahead of the Brooklinen Luxe Sateen at 46.1, the Cariloha Classic Bamboo Bed Sheet Set at 42.3 and the Mellanni Iconic microfiber set at 42.0.

Nothing here clears 60. That is the result, not a rounding problem.

Every price below is a queen set, checked on 31 August 2026 on each brand’s own store.

I have slept on cotton percale, sateen, and microfiber sheets over the years. The lesson is always the same. Still, the number on the package rarely matches how a sheet wears. What deserves a read is the fibre line on the label.

Prices are approximate, current as of publication, and change frequently — confirm the latest price with the retailer before buying.

Percale vs sateen vs bamboo sheets: which fits which sleeper?

• Best overall: L.L.Bean 280-Thread-Count Pima Cotton Percale, $200. It publishes fibre content, thread count and country of origin, and Consumer Reports names this set as the one that shrank the least in its tests.
• Best on price: Mellanni Iconic microfiber, $35.27. It costs less than a fifth of everything else here and it tells you almost nothing about itself.
• Best if you want the sheen: Brooklinen Luxe Sateen, $209. Brooklinen publishes a 480 count and long-staple cotton, and no weight.
• Skip unless the fibre matters to you: Cariloha Classic Bamboo, $199. Cariloha labels it correctly as viscose from bamboo. The cooling claim attached to it has no published basis I could find.

Is thread count something a sheet label has to carry?

Start with the law, because it settles more of this than any review does. Bedding is covered by the Textile Fiber Products Identification Act, and the FTC’s own guidance lists sheets by name. The label has to give you fibre content by generic name and percentage by weight in descending order, country of origin, and the identity of the manufacturer, importer or dealer. Three things.

Thread count is not on that list. Neither is fabric weight. Both of the numbers a sheet shopper is actually trying to compare are optional, and the one that is printed everywhere is the one with no standard behind it.

Percale, sateen and bamboo sheets: claims vs evidence

Here is each claim, set against what stands behind it.

The claim on the package	What stands behind it	Verdict
“280 thread count”, “480 thread count”	No mandatory US definition. ASTM D3775 and ISO 7211-2:2024 are voluntary test methods, not labelling rules, and neither is what gets printed on a package. Consumer Reports reports no correlation between manufacturers’ thread-count claims and how sheets actually performed in its testing.	Unregulated number
“100% viscose from bamboo” (Cariloha)	Correct under the FTC’s rule. The FTC says that unless a product is made directly with bamboo fibre it cannot be called bamboo, and must use the generic name — rayon, or rayon made from bamboo.	Compliant, and unusually so
“3 degrees cooler than other non-bamboo fabrics” (Cariloha)	No published test, standard or third-party measurement that I could locate. Cariloha names no basis on the product page.	Unsupported as published
“Double-Brushed Microfiber” (Mellanni)	AATCC states the industry threshold as under 1 denier and over 0.3 denier, and cites no standard number for it. There is no US legal definition of microfiber. Mellanni’s own page gives no fibre percentage, no denier, no thread count and no weight.	Word, not a specification
Fabric weight in GSM	Not published by L.L.Bean, Brooklinen, Cariloha or Mellanni for the sets here.	Absent from all four

Can a viscose sheet legally be sold as bamboo?

No, and the FTC has collected money over it. In April 2022 the agency announced civil penalties of $2.5 million against Kohl’s and $3 million against Walmart, $5.5 million between them, for marketing rayon textiles as bamboo and attaching eco-friendly claims to them. The FTC’s own description is blunt: converting bamboo into rayon “requires the use of toxic chemicals and results in hazardous pollutants.”

That was not the first round either. In January 2013 four retailers paid $1.26 million between them on the same point: Sears $475,000, Amazon $455,000, Macy’s $250,000 and Leon Max $80,000.

The part worth knowing is how the FTC got to a penalty at all. Its authority rested on warning letters it had already sent to 78 retailers over a decade earlier, in 2010. Small inconsistency, since we are being careful about sources: the FTC’s own press release dates those letters to 3 February 2010 and its 2022 blog post about the same letters says January 2010.

Credit where it is owed. Cariloha’s product page says “100% viscose from bamboo”, which is what the rule asks for. If a set on a shelf near you says only “bamboo”, the label is the problem, not the fabric.

Why can Brooklinen print a GSM for linen but not for percale?

This is the finding that surprised me most. The usual line is that the industry does not print a fabric weight for sheets. That is not quite what is happening.

Brooklinen publishes 155 GSM for its Washed European Linen set, on its own site, on a page built exactly like the ones for percale and sateen. It also references a weight for its flannel and its heathered cashmere. On the Classic Percale and Luxe Sateen pages it publishes a thread count and a fibre and stops there.

So the number exists inside the company. It is printed where it flatters the fabric and left off where it would let you line two cotton sets up against each other. L.L.Bean, Cariloha and Mellanni do not publish a weight either, which makes the omission look like a category habit rather than one brand’s decision.

Mellanni goes furthest. Its current product page has quietly dropped the “1800” that made the line famous, and now says “Double-Brushed Microfiber” and nothing else. It gives no fibre percentage, denier, or count, and its own FAQ adds none of them back.

Percale vs sateen vs bamboo sheets: the five-axis score

Five axes, weighted for a purchase you make roughly once a decade and then launder for years. Label transparency carries the most weight at 30 percent, because on this product it is the only thing standing between you and a marketing adjective. Independent evidence gets 20 percent. Price gets 20 percent and is scored as a plain ratio: the cheapest set here is 100, and every other set scores the cheapest price divided by its own. Laundering and shedding get 15 percent. The temperature claim gets 15 percent, and no one wins it.

Axis (weight)	L.L.Bean Percale $200	Brooklinen Luxe Sateen $209	Cariloha Bamboo $199	Mellanni Microfiber $35.27
Label transparency (30%)	70 — fibre, 280 count, origin; no weight	60 — fibre, 480 count; no weight, though the brand prints one for linen	55 — correct fibre name; count only in prose; no weight	20 — no fibre percentage, no count, no denier, no weight
Independent evidence (20%)	75 — CR says this set shrank the least in its tests	45 — CR’s 550-count cotton set failed to fit a 10-inch mattress after a year of washes	40 — no measurement located for the cooling claim	35 — the only measured figure is a shedding figure
Price, cheapest = 100 (20%)	17.6	16.9	17.7	100
Laundering and shedding (15%)	80	75	70	30
Published basis for the temperature claim (15%)	30	30	25 — a number with no stated basis	30
Weighted total	56.0	46.1	42.3	42.0

Re-running the percale vs sateen vs bamboo sheets score

Disagree with a weight and re-run it. Drop label transparency to 10 percent and push price to 40, and the Mellanni set wins outright. That is a legitimate way to shop. It just means you have decided you do not care what the fabric is.

Is 280-thread-count percale worth the price?

Percale is a one-over-one weave, and L.L.Bean’s version publishes the three things a label should: 100 percent long-staple pima cotton, 280 thread count, imported. That is the fullest disclosure in this group.

Consumer Reports is the reason it scores well on evidence rather than on feel. CR washes fitted sheets 25 times, which it describes as about a year of laundering at fortnightly intervals, and tests fit, softness, wrinkling, strength and shrinkage. Its finding is that there is no correlation between manufacturers’ claims about materials or thread count and how the sheets performed. One of its top-rated sets carried a 350 count, a 550-count set no longer fitted a 10-inch mattress after a year of washes, and the L.L.Bean Pima Percale shrank the least of the sets it tested.

So 280 is not a low number. It is a normal number that stops being useful above a certain point, and paying for a bigger one buys a bigger number.

Skip this if you iron nothing and hate the look of a wrinkled bed, or if $200 for sheets is not a trade you want to make when a $35 set exists.

What does a 480-thread-count sateen buy you?

A surface. Sateen floats more threads on the face of the fabric, which is where the sheen and the glide come from, and Brooklinen prices its Luxe set at $209 for a queen in solids.

It scores below the L.L.Bean percale on independent evidence for a specific reason. The set Consumer Reports singled out for failing to fit after a year of washing was a 550-count cotton set. That is not the Brooklinen set, and I am not saying it behaves the same way. It does mean the higher count on a sateen face has an argument to answer, and a fabric weight would help answer it.

Brooklinen has the weight. It prints 155 GSM on the linen page.

Skip this if you sleep hot, or if you want to compare two cotton sets on anything more solid than which number is larger.

Does Cariloha’s viscose sleep three degrees cooler?

Cariloha publishes the claim on its own product page: its bamboo sheets are “3 degrees cooler than other non-bamboo fabrics”. Three degrees of what, measured how, against which fabric, is not stated. I could not find a test, a standard or a third party behind it.

Which is a shame, because Cariloha is the one brand here that gets its fibre labelling right. The set is sold as 100 percent viscose from bamboo at $199 for a queen. The formal spec list gives no thread count at all; a 250 count appears only in the marketing copy, next to a comparison against 1,000-thread-count Egyptian cotton.

A count in the prose and not in the specs is worth noticing. Specs get compared. Prose gets skimmed.

Skip this if you want a wash-and-forget set you can run hot without thinking, or if you were buying it for a temperature figure that has no test behind it.

How much does a polyester sheet shed in the wash?

There is a measured answer, and it is worth stating carefully. In a 2021 study in PLOS ONE, Vassilenko and colleagues laundered consumer textiles and weighed what came off. Polyester textiles released 161 ± 173 mg per kilogram of textile per wash. Nylon released 27 ± 14 mg on the same basis, about a sixth as much.

Read the error term before you use that number. The standard deviation on the polyester figure is larger than the mean, which means the spread between one polyester fabric and another is wider than the gap between polyester and nylon. The study measured apparel, not sheets. No shedding figure has been published for the Mellanni set specifically, and the honest position is that a polyester sheet sheds, at a rate that has not been measured for this product.

The rest of the case for the Mellanni set is the price. $35.27 on sale from $46.97, against $199 to $209 for everything else here. Nothing in this comparison changes that.

Skip this if you sleep hot, or if you want to know what you are buying. Mellanni publishes less about its own product than any other brand on this page.

Bamboo or microfiber for third place?

42.3 against 42.0 is a tie. Three tenths of a point on a hand-weighted tally is noise, and pretending otherwise would be dishonest about how the tally was built.

I would spend my own $199 on the Cariloha. Not because of the cooling claim, which I would ignore. Because the label tells me what the fibre is, in the words the FTC requires, and the Mellanni set tells me nothing I could check.

If your $35 is doing a different job — a guest bed, a child’s bunk, a set you expect to replace — buy the Mellanni and do not feel clever about it either way.

Percale vs sateen vs bamboo sheets: the verdict

It leaves the L.L.Bean percale in front, on the strength of the label and Consumer Reports’ finding that it shrank the least. The Brooklinen Luxe Sateen is the loser here, and not because it is a bad sheet: it is the one set whose maker demonstrably has a fabric weight and prints it on a different page.

Two things to do before you buy anything. Read the fibre content line rather than the front of the box, because that line is the part the law governs. And treat the thread count as decoration.

Certifications and recalls for sheets

Other things that turn out to be relevant: certifications are narrower than they look. OEKO-TEX STANDARD 100 certifies that an item has been tested against a list of over 1,000 harmful substances. It is a chemical safety test. It says nothing about organic content, durability or how the sheet sleeps. GOTS is the organic one, and it has two grades: the “Organic” label needs at least 95 percent certified organic fibre, “Made with Organic materials” needs at least 70 percent.

One more, for completeness: no CPSC recall of bed sheets surfaced in searches covering 2023 to 2026. Mattresses and mattress pads get recalled constantly under the federal flammability rule. Sheets, which sit against you all night, are not covered by a mandatory performance standard at all.

Sources named above, in order of how much work they did here: the FTC’s textile labelling guidance, its bamboo business guidance, the April 2022 Kohl’s and Walmart penalties, Consumer Reports on sheet testing, and the PLOS ONE laundry shedding study. Every price came from the brand’s own store on 31 August 2026.

If the pillow under these sheets is the part that is wrong, we ranked foam, water and buckwheat cervical pillows on a similar tally, and the mattress-in-a-box comparison covers the layer under that. More in Home & Living.