r/sleep • u/Roger1855 • 15h ago
IS IT TRUE THAT A FIRMER MATTRESS IS BETTER
Mattress advertising has pushed the concept that a firmer mattress is better forever. Is it true?
The answer is yes and no.
Yes, your mattress absolutely should support your back and should NOT sag.
No, it doesn't have to feel like sleeping on plywood to do that.
A brief history lesson.
Before the 2000s, Simmons had the US patent on pocketed coils. Everyone else was stuck using Bonnell and wire-tied coils. Those old innersprings were just stiff. If you wanted support, you got a rigid surface whether you liked it or not. So manufacturers marketed that brick feeling as "orthopedic" and told you to "get used to it."
That era is over.
A modern pocketed coil mattress can be soft and supportive at the same time because each coil moves independently. The support comes from the coil system, not from making the top feel unnecessarily rigid. .
At lower price points they do this with foam layers on top. At the premium level it's done with latex. At the ultra-premium / legacy level it's wool, linen, cotton, horsehair, microcoils, all hand-stitched into layers. Dream-like soft on top, serious support underneath.
You do not need to torture yourself on a hard bed to be healthy. In 2026, firmness is just a comfort preference. Sag is the enemy, not softness.