Detailed review protocol
How we Score and Test Mattress Noise Isolation
We listen for and reproduce squeaks, crackles, and structural noise during loading and movement; noise is reported as a practical finding rather than forced into the overall score.

What we evaluate
Mattress noise can come from coils, covers, fire barriers, adhesives, foundations, or the interaction between layers. It matters most to light sleepers and couples, but a quiet result is expected from most modern mattresses.
How we test noise
Tests are performed on a stable, quiet foundation so frame noise is not mistaken for mattress noise. We first listen while a tester rolls, changes position, sits on the edge, and gets into and out of bed. We then apply a higher-load movement check, including a controlled jump, to reveal sounds that lighter movement may not produce.
Any sound is repeated to determine whether it came from the cover, comfort layers, coil unit, adhesive, or foundation. We describe its source, intensity, and whether it is likely to occur during ordinary movement. Because room acoustics and foundations vary, we report noise as an observed practical finding rather than a laboratory decibel claim.
How noise affects the review
Noise is a supplemental finding rather than one of the eight overall-score factors. A material noise problem can still affect ease of movement, couple suitability, durability analysis, or the final recommendation. The review states the observation directly instead of inflating a quiet mattress with an automatic high score.
Noise grade used in combined-use guidance
When a combined-use calculation needs a numeric noise input, we use the following controlled grades. This grade is not added to the overall mattress score.
| Noise input | Observed noise |
|---|---|
| 10 | Minimal |
| 8 | Moderate |
| 6 | High |
| 4 | Very high |
The grade is based on repeated sound under the same movement, not a single incidental noise. The review still describes the source and ordinary-use relevance because two mattresses with the same grade may produce different kinds of sound.