Testing Methodology
Our testing protocol was developed with sleep medicine professionals and refined over 4 years of hands-on product testing. Every score you see is backed by real data collected with real equipment — not guesswork or manufacturer claims.
8-week test protocol · 7 pieces of equipment · 12 scoring categories
Our 5-Phase Testing Process
Acquisition & Unboxing
We purchase most mattresses at full retail price from Amazon or the brand's website. When a brand provides a sample, we disclose this prominently on the review page. We document the purchase date, price paid, and unboxing experience including setup time, off-gassing, and time to full expansion.
4-Week Break-In Sleep Trial
Every mattress is slept on nightly for 4 weeks by at least two team members — ideally one side sleeper and one back sleeper. This ensures the mattress is fully broken in and allows us to capture comfort changes that occur in the first weeks of use.
Standardised Lab Testing
After the break-in period, we run our full standardised battery: FLIR thermal camera testing, Tekscan pressure mapping at three positions, motion transfer quantification, edge support jig testing, and firmness measurement. All tests are run under controlled conditions at 70°F ambient temperature.
Reader Panel Validation
Top-performing mattresses from our lab tests are sent to our 500-person reader sleep panel for extended real-world testing. Panel members provide structured feedback at 1, 3, 6, and 12 months. This data weights our long-term satisfaction score.
Annual Re-Review
We revisit every published review annually to verify current pricing, check for product reformulations, and update scores where the product has materially changed. Our "Last Updated" date reflects when content was last verified.
Testing Equipment
How We Score
Each mattress receives a score out of 10 in each category below. The overall score is a weighted average. Weightings reflect what our reader research shows mattress buyers care most about.
Pillow Testing Protocol
Pillow testing follows a separate protocol developed by our Pillow & Accessories Editor, Paul Clark. Pillows are evaluated over a 6-week trial across side, back, and stomach sleep positions by testers with different body types and neck dimensions.
Loft Retention
We measure loft height at week 1 and week 6 to quantify compression and fill loss over time.
Neck Alignment
Photographed in three sleep positions and assessed by our physical therapist for spinal alignment.
Thermal Performance
Contact thermometry at the pillow surface after 2 hours of use in a 70°F room.
Adjustability
Evaluated by adding/removing fill to test the range of achievable loft and ease of adjustment.
Questions About Our Testing?
We are happy to explain exactly how any specific review was conducted.
Email Our Editorial Team