How to Think About Mattress Firmness by Sleep Position
Sleep position changes which parts of the body press most strongly into the mattress, which is one reason firmness preferences vary.
The important distinction
Instead of treating a position-based firmness number as a medical rule, use it as a testing framework: note where you feel comfortable, whether you feel adequately supported, and how the surface behaves over several nights.
What to check when shopping
Adjustable-firmness systems can make experimentation easier because the support setting can be changed without replacing the whole mattress.
Back to the adjustable-firmness guide → · Open the buyer's guide →
Ready to check Airpedic?
Confirm the model, size, current price, promotion and purchase terms on Airpedic before ordering.
View Airpedic MattressesAffiliate disclosure: we may earn a commission from qualifying purchases at no additional cost to you.
Product specifications, pricing and terms can change. Source review date: September 11, 2026.