What To Look For When Buying A Mattress -

Need a softer to medium-firm mattress (firmness 4–6) that contours to the hips and shoulders to relieve pressure.

Require a firm mattress (firmness 7–9) to keep the hips from sinking, which helps prevent lower back strain. what to look for when buying a mattress

Typically benefit from a medium-firm to firm mattress (firmness 6–8) that supports the lower back's natural curve without letting the hips sag. Need a softer to medium-firm mattress (firmness 4–6)

Choose the Right Mattress for Better Sleep - Consumer Reports what to look for when buying a mattress