by Editor’s Top Pick
Saatva Classic
Best overall mattress — innerspring comfort, 365-night trial, lifetime warranty.
Why We Publish Our Methodology
Most mattress review sites do not publish their testing methodology. They assign scores without explaining how those scores were generated, which makes it impossible to evaluate whether their rankings are meaningful. We publish our full methodology, testing protocols, and scoring weights so you can judge for yourself. We test every mattress we review as a primary sleep surface for a minimum of 60 nights. We use physical measurement equipment, not just subjective impressions.
Our Testing Phases
Phase 1: Pre-Sleep Assessment
Before the first night, we document the mattress as received: unboxing or delivery condition, expansion time for bed-in-box models, initial firmness measurement using a durometer, initial surface temperature, and visual inspection of construction quality including cover stitching and edge foam condition.
Phase 2: Night 1–14 Baseline
The first two weeks establish a baseline response. We log morning comfort scores (1–10), targeted pain areas (shoulder, hip, lower back, neck), sleep duration, and number of wakings. We also capture initial pressure maps in all three positions. This phase captures first impressions and identifies obvious comfort issues.
Phase 3: Night 15–60 Core Testing
The core testing phase is where structured measurements occur. Weekly pressure map scans. Three temperature measurement nights per month. Edge support test at weeks 2, 4, and 8. Motion transfer test using a weighted drop ball at week 4. We also log any observed changes in firmness or surface feel during this period.
Phase 4: 60–90 Night Durability Check
At 60 nights, we remeasure firmness using the durometer and compare to the initial measurement. We perform a visual inspection for body impression using a straightedge across the mattress surface. We re-run the pressure map and compare to the initial scan. Changes beyond acceptable thresholds affect the durability score.
Phase 5: Owner Data Integration
After direct testing, we integrate owner review data from 500+ verified purchasers per model. We weight long-term owners (2+ years) more heavily than short-term owners. This data particularly informs our durability and motion isolation scores where our 90-night test is insufficient.
Scoring Weights
Our overall mattress score is a weighted composite of eight criteria. Spinal support and pressure relief together account for 40% of the score because they most directly affect sleep quality and long-term health outcomes. Temperature regulation, motion isolation, and edge support account for 35%. The remaining 25% covers durability, trial/warranty value, and delivery quality.
| Criterion | Weight |
|---|---|
| Spinal Support | 20% |
| Pressure Relief | 20% |
| Temperature Regulation | 15% |
| Motion Isolation | 10% |
| Edge Support | 10% |
| Durability (projected) | 10% |
| Trial / Warranty Value | 10% |
| Delivery / Service | 5% |
Our Testing Equipment
Pressure mapping: resistive pressure mapping mat (2,048 sensor grid, 100g/cm² resolution). Temperature measurement: calibrated infrared surface thermometer, logged digitally. Firmness measurement: Shore OO durometer at five points across the mattress surface. Edge support: standardized 150-lb weight plate, compression measured in millimeters. Motion transfer: standardized drop-test protocol with weighted ball and laser level measurement.
Tester Profiles
Our primary testers sleep on every mattress as their main sleep surface. Testers include: a 165-lb back/combo sleeper (male), a 135-lb side sleeper (female), and a 240-lb back sleeper (male). Each mattress is tested by at least two testers over the evaluation period to capture variation across body types and sleep positions. We do not use short-term testers who evaluate a mattress for a single night.
Disclosure and Independence
MattressNut participates in affiliate programs, including Saatva, Helix, Nectar, DreamCloud, and others. If you purchase through our links, we may receive a commission at no additional cost to you. Our affiliate relationships do not influence our test scores or rankings. Our scoring methodology was established before any affiliate relationship existed and is applied consistently to all brands. We do not accept free mattresses in exchange for positive reviews.
Related Guides
Editor’s Top Pick
Saatva Classic
Best overall mattress — innerspring comfort, 365-night trial, lifetime warranty.
Frequently Asked Questions
How long do you test each mattress?
We test every mattress for a minimum of 60 nights, with flagship models tested for 90 nights. Testing is done by a primary tester sleeping on the mattress as their primary sleep surface for the full period, plus a secondary observer who logs data points weekly.
Do you use pressure mapping equipment?
Yes. We use a resistive pressure mapping mat that measures pressure distribution across 2,048 sensor points simultaneously. We capture pressure maps in three positions at the start of testing and again at 60 nights.
How do you measure mattress cooling?
We use a calibrated surface thermometer to measure mattress surface temperature before sleep, at 2am, and at 4am on three separate nights per mattress. We subtract ambient room temperature to isolate mattress-specific thermal performance.
How is edge support tested?
We measure perimeter compression under 150 lbs of static load at three points: corner, mid-edge, and quarter-edge. We measure total compression depth in inches. We also conduct a seated test and measure how far the edge compresses versus the center.
Do mattress companies pay for reviews?
No. MattressNut does not accept payment for reviews, placement, or scores. We participate in affiliate programs (disclosed on each page) but this does not influence our test scores or rankings.
Key Takeaways
Mattress Test Results is a topic that depends heavily on individual needs and preferences. The most important thing is to consider your specific situation — your body type, sleep position, and personal comfort preferences — before making any decisions. When in doubt, take advantage of trial periods to test before committing.