Shopping for a mattress is confusing on purpose, or at least it feels that way.
Brands use different names for similar beds, firmness ratings do not match from one company to the next and big discounts appear constantly.
The way through is to compare mattresses on a short list of features that actually affect how you sleep, then check the fine print on trials, returns and warranties.
This guide shows how to compare mattresses step by step, with a side-by-side worksheet you can fill in, the questions to ask and the mistakes to avoid.
Facts below were checked on October 31, 2026. Prices, trial periods and warranty terms change often, so confirm them on the seller's own site before you buy.
This article is general information, not medical advice.
Start With the Mattress Type That Fits Your Needs
Before you compare brands, narrow the field by construction. Each type feels different and suits different sleepers.
A guide on how to match the mattress type to your needs, last modified September 16, 2026, describes four main types:
- Memory foam: contours closely and absorbs motion, which suits side sleepers and light sleepers who share a bed. The main drawback is heat, though some foams add cooling features.
- Hybrid: foam comfort layers over a coil core. It offers contouring with better airflow.
- Latex: bouncier and more responsive than memory foam, naturally cooling and durable, but it costs more up front.
- Innerspring: coils only. It is breathable and budget friendly, but it isolates motion and contours less well.
The Sleep Foundation's mattress-choosing guide, which also covers airbeds that let each side of the bed have its own firmness, describes the same trade-offs:
Foam gives strong contouring and motion isolation, and innersprings are bouncier with less pressure relief (page visibly dated July 15, 2025, with metadata showing a later modification date).
The Sleep Foundation earns commissions on some links, so treat its product picks as one input, not a final word.
The first guide also leans on a 2003 PubMed study, which it says found medium-firm mattresses may produce better outcomes for chronic, nonspecific lower back pain than firmer ones.
And a second study on sleep quality after people swapped old bedding for new medium-firm systems.
I could not check either study at the source. The page also promotes a mattress brand's discounts, sits on a deals-style site and recommends a specific brand, so use its framework and check any offer directly with the seller.
Quick type filter:
| If you... | Consider |
|---|---|
| Sleep hot | Hybrid or latex |
| Share a bed and wake easily | Memory foam or foam-heavy hybrid |
| Want a bouncy, responsive feel | Latex or innerspring |
| Have a tight budget | Innerspring or basic foam |
| Want different firmness on each side | Airbed |
Check Whether You Need a New Mattress at All
Do not shop until you know your current bed is the problem. A pillow, a bad schedule or stress can cause poor sleep too.
A guide to the 6 signs that you need to replace your mattress in 2026 lists them: age of about 6 to 8 years or more.
Visible sagging or body impressions, morning stiffness that fades later in the day, better sleep in other beds, worse allergies or asthma symptoms and noise or motion that wakes you.
The page treats its age figure as a rough guide, citing the Sleep Foundation's general advice to replace a mattress about every 6 to 8 years, and notes that durability varies by type.
It also quotes survey numbers, including an Amerisleep 2026 survey finding that Americans waited an average of 5 years to replace a mattress they already knew needed it.
And Better Sleep Council data (via BedTimes) that people expected a mattress to last 9.6 years while nearly half replaced theirs within seven.
I could not check those at the source. The page has no clear publication date, shows a 2025 footer despite its 2026 title and promotes a mattress brand's student discount and Black Friday sale without disclosing whether the links are paid, so verify any deal yourself.
A simple home test: lay a straight board or broom handle across the bed and look for gaps, and note how you feel for a week.
If you sleep better away from home, that is a stronger clue than age alone.
Compare Firmness Using Sleep Position and Body Weight
Firmness is usually rated on a 1-to-10 scale, but the scale is not standardized. A "medium" at one brand can feel firm at another.
The Sleep Foundation says comfort is subjective and calls the scale "not perfectly scientific."
Use these as starting points, not rules:
| Sleep position | Typical firmness range | Why |
|---|---|---|
| Side | About 4 to 6 | Gives room for shoulders and hips |
| Back | About 6 to 7 | Supports the lower back |
| Stomach | About 6 to 8 | Keeps hips from sinking |
| Combination | Medium-firm | Handles several positions |
Body weight shifts the range. Both guides say lighter sleepers (under about 130 pounds) often prefer softer beds, and heavier sleepers (over about 230 pounds) usually do better with firmer, more durable ones.
Pain can change the answer too, so if you have back or hip pain, ask a healthcare professional about what support suits you.
When you compare two mattresses, ask each brand how it rates firmness, and compare the same position, not the marketing label.
Compare Materials, Layers and Build Quality
Two mattresses of the same type can differ a lot inside. Ask what the comfort and support layers are made of and how thick they are.
What to look at:
- Comfort layer: the top layers that you feel. Ask the material, thickness and density.
- Support core: foam or coils underneath.
- For hybrids, ask about coil type and count, and whether coils are individually wrapped.
- Cover: removable or not, washable or not, and breathable or not.
- Edge support: matters if you sit on the edge or sleep near it.
- The Sleep Foundation's mattress-choosing page does not discuss edge support in depth, so check reviews and test it in a store when you can.
- Certifications: ask which independent labels apply and what they cover. Check the certifier's own site to confirm a claim.
The first guide says most mattresses last 7 to 10 years, but that is a general figure. Latex and well-built hybrids tend to hold up longer than cheap foam.
Ask for density specs on foam rather than accepting "high-quality foam" as an answer.
Compare Cooling, Motion Isolation and Noise
Three comfort features matter more than people expect.
- Temperature: memory foam can trap heat. Hybrids and latex usually sleep cooler. Ask about breathable covers, gel or phase-change materials and airflow in the core, and read reviews from hot sleepers.
- Motion isolation: if your partner moves a lot, foam and many hybrids absorb movement better than traditional innersprings.
- Noise: older or worn coil beds creak. Ask about the coil design, and check reviews for noise complaints.
Rank these on your own list. A solo sleeper who runs cold may not care about cooling at all, while a hot sleeper who shares a bed might care about all three.
Test the Bed
If you can, lie on the mattress in a store. The Sleep Foundation suggests lying on it for at least 10 to 15 minutes.
Try your usual positions, bring your own pillow and ask a partner to move around while you stay still.
Store tests only go so far, because a showroom is short and your body takes time to adjust. That is why the trial matters most.
Compare Trials, Returns and Warranties
This is where two similar mattresses can differ the most. The Sleep Foundation's online buying guide (published June 24, 2021, last updated July 15, 2025) says most online brands offer an at-home trial, typically 60 to 180 nights or more, usually with a refund or exchange.
It adds that some brands require a break-in period before you can request a return, some charge return shipping and policies vary substantially between brands.
The first guide above suggests looking for a trial of 100 nights or more and allowing at least 30 nights to adjust.
Questions to ask every seller:
- How long is the sleep trial, and when does it start?
- Is there a minimum break-in period before I can return it?
- Is the return free, or do I pay shipping or a fee?
- Do I get a full refund, store credit or an exchange only?
- Do I have to donate or dispose of the mattress?
- Are there size, model or sale-item exceptions?
Warranty fine print:
- The Sleep Foundation says warranties typically cover manufacturing and material defects, such as indentations deeper than a set depth or splitting foam.
- Check whether the warranty is prorated, meaning you pay a growing share of repair or replacement as the bed ages.
- Check who pays shipping for a replacement.
- Warranties usually do not cover beds bought from unauthorized retailers, so the guide recommends buying from the manufacturer's site.
- Keep proof of purchase, and use the foundation or frame the warranty requires, since some warranties require specific support.
Compare Total Price, Not Sticker Price
The Sleep Foundation says most queen mattresses fall between $600 and $2,000, and that sticker prices are often reduced by sales.
Prices change often, so I am not quoting any specific brand's price here.
Compare the real cost:
| Cost item | Ask |
|---|---|
| Mattress price | Is the discount real, and how long does it last? |
| Delivery | Is it free? Is white-glove setup extra? |
| Old mattress removal | Is it free or a fee? |
| Foundation or frame | Do I need a new one, or does my current base work? |
| Return costs | Could I pay shipping if I send it back? |
| Warranty extras | Are there fees to claim? |
| Financing | What is the interest rate and the total cost? |
Sales events, such as the Black Friday weekend that falls on November 27 this year, can lower prices, but a "70% off" label means little if the list price was inflated.
Compare final prices across sellers, and check how recent similar discounts looked.
Read Reviews the Smart Way
Reviews help, but they need care.
- Look for patterns across many reviews, not one dramatic story.
- Read the three-star reviews, which often explain trade-offs.
- Filter for people with your body type and sleep position.
- Note how long a reviewer owned the mattress. A review after two weeks tells you little about durability.
- Be careful with review sites that earn commissions. The Sleep Foundation discloses that it earns commissions on some links.
- That does not make its testing wrong, but compare more than one source.
- Check the brand's complaint record and return policy reviews, not only comfort scores.
Use a Side-by-Side Worksheet
Copy this table into your document and fill in two or three finalists.
| Feature | Mattress A | Mattress B | Mattress C |
|---|---|---|---|
| Type | |||
| Firmness (brand's rating) | |||
| Comfort layer material and thickness | |||
| Cooling features | |||
| Motion isolation | |||
| Edge support | |||
| Total price with delivery | |||
| Trial length | |||
| Return cost | |||
| Warranty length and terms | |||
| Review pattern | |||
| Score out of 10 |
Score each feature by how much it matters to you, then add up the totals. The cheapest bed is rarely the best value, and the most expensive bed is rarely necessary.
Common Mistakes to Avoid
- Buying on a discount alone
- Assuming firmness ratings match across brands
- Skipping the trial and return terms
- Forgetting delivery and removal costs
- Ignoring a partner's needs
- Judging a bed in five minutes
- Returning a bed after a few nights, before your body adjusts
- Using a worn-out foundation under a new bed
- Trusting a single review site
Frequently Asked Questions
What is the best type of mattress?
There is no single best type. Hybrids suit many sleepers, memory foam helps motion isolation and latex is durable and cool, but your sleep position, weight and budget decide.
How firm should my mattress be?
Side sleepers often prefer about 4 to 6, back sleepers about 6 to 7 and stomach sleepers about 6 to 8, but the scale is not standardized, so test it.
How long should I test a new mattress?
Allow at least 30 nights to adjust, and choose a sleep trial that lasts well beyond that.
How long do mattresses last?
One source says 7 to 10 years in general, and the Sleep Foundation's replacement guideline is about 6 to 8 years. Quality, materials, body weight and use all matter.
Is a more expensive mattress better?
Not always. Compare materials, trial terms and warranty, and check what the extra money buys.
Should I buy online or in a store?
Online brands usually offer longer trials. Stores let you test the bed first. Either way, read the return terms.
Final Thoughts
To compare mattresses well, start with your needs: sleep position, weight, temperature and partner.
Narrow the type, compare firmness and materials, test the bed and read the trial, return and warranty terms closely.
Then compare the total cost, fill in the worksheet and pick the finalist that fits the most boxes. Give any new mattress at least a month before you decide.
Sources
Facts were checked on October 31, 2026, and may change. The Sleep Foundation earns commissions on some links, so its pages are labeled as a commercial publisher.
- Sleep Foundation, How to Choose a Mattress (visibly dated July 15, 2025; page metadata shows a later modification date; commercial publisher)
- Sleep Foundation, How to Buy a Mattress Online (published June 24, 2021; last updated July 15, 2025; commercial publisher)