Body weight
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Most of what shapes your sleep isn't for sale.
Room, routine, light, stress — a bed influences how you sleep, but it's only one part. Worth knowing which part is ours before you read anything else here.
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Center Support & DurabilityAll articles.
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How to Choose the Right Mattress for Your Body Weight, Sleep Position, and Preferred Feel
Read →There's no single best mattress, and any guide that names one is skipping the part that matters. Combine three personal inputs — weight range, sleep position, preferred feel — with one structural question: how the build handles repeated load over time.
N°01 -
Do you need a special mattress?
"Special" usually names a feel or a marketing category, not a different kind of support. The real difference between beds is whether support lasts in the center — and matching the fit to your body and sleeping position. Persistent pain is a separate question for a professional.Read →N°02 -
How to choose a mattress as a heavier sleeper
If you're a heavier sleeper, more of your weight concentrates on the center of the mattress — so a reinforced center matters more for you than for almost anyone. Surface firmness is a comfort preference; the deciding factor is whether the support core, especially the middle, is built to carry the load.Read →N°03 -
Why does body weight concentrate in the center of a mattress?
Read →When you lie down, your weight isn't spread evenly. The torso and pelvis—the heaviest part of you—rest on the center third, putting roughly 60–70% of your body weight on that one zone, while the shoulders and legs press far less on the ends.
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Why do some mattresses feel supportive at first but not later?
Read →First-night support and long-term support are different things. A new mattress feels supportive before any material has fatigued; over time the center loses springback and the support fades, even though the showroom feel was real.
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Why does my mattress develop body impressions?
Read →Body impressions form where you lie most. Some shallow settling is normal, but a deepening impression in the center is usually the support beneath failing—since body weight concentrates there and fatigues it first.
N°06
The technology behind these answers.
Manchot's StasisLayer™ System is the structural reasoning that informs every article here.
Engineering, when explained clearly, doesn't need to sell itself.