Stomach sleepers typically feel most comfortable on a medium-firm to firm mattress, usually around 6–8 on the 10-point firmness scale. A firmer surface helps keep your hips and midsection from sinking too far into the bed, which can put extra strain on your lower back. Your ideal firmness will also depend on your body weight and personal comfort preferences.

Good support is especially important for stomach sleepers because this position can put extra strain on the lower back. If your mattress allows your hips and midsection to sink too deeply, it can cause your lower back to arch uncomfortably and throw your spine out of alignment. Look for a mattress with a sturdy support core or zoned support system that helps keep your hips elevated and your spine in a more neutral position. The goal is to find a mattress that provides consistent support across your body without feeling overly rigid or uncomfortable.

Just because stomach sleepers need a firmer mattress doesn't mean they have to sacrifice cushioning entirely. A little pressure relief around your chest, shoulders, hips, and knees can make sleeping on your stomach more comfortable. The key is finding a mattress with comfort layers that gently cushion your body without letting you sink too deeply.

A mattress that responds quickly to movement can make it easier to shift positions and get comfortable throughout the night. Look for durable materials, such as high-density foams or supportive hybrid coils, that maintain their shape and resist sagging over time. Hybrid mattresses can be a particularly good option because they combine responsive coil support with cushioning comfort layers.