The double-sided Plank Firm is a flat, firm mattress designed for sleepers who want strong support with minimal cushioning.

While a mattress topper isn’t always necessary for a good night’s sleep, the right topper can work wonders on a bed that’s too firm or too soft for comfortable ... alignment,” explains Dr. Chester Wu, ...

As a sleep writer, I know there has been some debate about whether memory foam mattresses are supportive enough for stomach ...

Our top pick, the Helix Plus, meets the mark with its medium-firm feel ... a double board-certified sleep medicine and obesity medicine physician, ideal mattresses for larger couples are hybrids ...

Our writers and editors are constantly testing mattresses you can buy online, and here, we’ve listed the best firm mattresses we’ve tried. Our reviews are based on at least a week’s worth of ...