Every mattress fact, sourced and dated.
Nappedia reads what mattress makers publish and shows you the source and the day we checked it. We don’t test beds, and we say so. Search a brand or a model to start.
Counts checked Oct 23, 2026. We add pages often.
What’s keeping you up about your next mattress?
Pick the worry that sounds most like yours. Each card opens a page with its sources named.
Back, hip or shoulder pain
Which feel fits how you sleep? See what the research says, and what it doesn’t.
Foam vs spring for back painSleeping hot
Foam, coils and covers hold heat differently. Here’s how they compare.
Coil vs foam for hot sleepersSagging and how long it lasts
Makers rarely publish wear data. Here’s what they do publish.
How long coil beds lastPrices, fees and sales
Every price on our pages names the maker’s page and the day we checked it.
Where our prices come fromReturns and trial periods
Read the trial terms before you buy, and what a break-in period means.
Trial and break-in researchFiberglass and what’s inside
What law tags and maker pages list, with the sources linked.
Fiberglass and your mattressPartner movement
How much you feel a partner turn over, and what the research found.
Motion transfer researchDelivery and setup
Boxed or not, here’s what arrives at your door.
Can a coil bed come in a box?Not sure where to start?
Answer six quick questions about how you sleep. No email needed.
Take the sleep quizOpen a brand and see what it publishes
A brand review shows the maker’s models, prices, trial and warranty terms, with each source and date. It isn’t a ranking.
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Saatva
Brand review and 9 model pages
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Tempur-Pedic
Brand review and 7 model pages
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Purple
Brand review and 11 model pages
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Beautyrest
Brand review
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Leesa
Brand review and 12 model pages
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PlushBeds
Brand review and 5 model pages
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Tuft & Needle
Brand review
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Layla
Brand review
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Nectar
Brand review
See all 507 brand reviews Browse the 1,046-page catalog
Biggest catalogs we track
| Brand | Catalog models | Page |
|---|---|---|
| Saatva | 42 | Brand review |
| Tempur-Pedic | 646 | Brand review |
| Sealy | 1,305 | No brand review yet |
| Serta | 1,118 | No brand review yet |
| Beautyrest | 1,298 | Brand review |
| Purple | 29 | Brand review |
| Casper | 31 | No brand review yet |
| Helix Sleep | 45 | No brand review yet |
| PlushBeds | 27 | Brand review |
Catalog counts include current and retired models. They aren’t counts of reviews, or of beds you can buy today.
Two beds, side by side
Same rows, same sources, so a difference is a real difference and not a different way of writing it down.
Two organic-leaning beds. Compare materials, certifications, trials and prices side by side.
See the comparison Bear Elite HybridCasper DreamTwo popular hybrids. See construction, trial terms and warranty in one table.
See the comparison Saatva ClassicThe WinkBedTwo coil-on-coil hybrids, lined up spec by spec with the source for each.
See the comparisonCoil, hybrid or foam?
The build changes how a bed feels, sleeps and wears. These drawings show the layers in plain terms.
We read. We cite. We date it.
We don’t test mattresses and we don’t give them our own score. Our job is to put what’s published in one place, with the receipts.
1. We read the maker’s page
Prices, specs, trials and warranties come from the maker’s own site, or from a named public record.
2. We save the source and the date
Each fact on a page shows where it came from and the day we checked it.
3. We show what’s missing
If a maker doesn’t publish a number, the page says so. We never fill the gap with a guess.
What published studies found
We summarize 26 published sleep studies. Each summary says what the study shows and what it doesn’t.
Firmness and chronic low back pain
What a published trial found when people slept on different firmness levels, and its limits.
Read the summaryFiberglass in mattress covers
A published audit of fiberglass and other flame-resistant fibers, and why the law tag matters.
Read the summaryFoam wear and firmness loss
What researchers found about how mattress firmness changes with long-term use.
Read the summaryRead the tag before you buy
A law tag and a certification label each say who checked what. We link the maker’s page or the public record, and we never guess what’s inside a named bed.
- CertiPUR-US
- OEKO-TEX Standard 100
- GREENGUARD Gold
- GOLS organic latex
- GOTS organic textile
- USDA Organic
Fiberglass and your mattress Safety standards
This page is for general information. It is not legal, medical or insurance advice.
Mattress stores near you
246 city pages across nine states list the stores where you can lie down on a bed first.
Quick answers about how we work
How is Nappedia different from other mattress review sites?
We don’t give beds our own score or ranking, and we don’t sleep on them. We read what makers publish and name the source and the date for every fact. If a number isn’t published, we show the gap.
If Nappedia has a page for a mattress, did you test it?
No. We don’t handle beds, open boxes or sleep on any mattress. A page shows what the maker publishes, the day we checked it and where you can check it yourself.
Can the library tell me how a mattress will age?
Not really. Makers rarely publish long-term sag rates or durability data. We record warranty terms and say plainly when wear data is missing.
Why is a fact missing from a mattress page?
The maker didn’t publish it anywhere we could find. Foam density, adhesive makeup and sag figures are common gaps. We don’t estimate, so the page marks the gap instead.
Where do the prices on your pages come from?
From the maker’s own website, and nowhere else. Each price names the page it came from and the day we checked it. Prices change, so check the maker’s page before you buy.
How does Nappedia make money?
Some links earn us a commission if you buy through them. It doesn’t change what we write, and makers don’t review or approve a page before it goes live. Our advertising disclosure has the full picture.
No questions matched that search. Try price, test or sag.