Best Firm Mattress 2024. Extra firm mattresses allow for very little sink, making them a popular choice for stomach sleepers who need a mattress that doesn’t sag under their midsection. 16 best mattresses of 2024, tested by our editors.
First, you have the durable base foam layer. After testing dozens of mattresses in the 360 reviews lab, collecting data from our consumer survey, and consulting sleep experts, we think the helix dawn is the best firm mattress.