"Many of our testers side-sleep and can speak to the necessity of these mattress performance factors firsthand, including director Martin Cizmar and reviewer Julia Forbes, a certified sleep science coach. It's never so simple as just lying down on a mattress and saying "Eureka!" That's why we spend at least a week with each model to monitor our daily sleep and feelings toward each one."
"If you're looking for the best side-sleeper mattresses, welcome. You're in good company, as many of the WIRED Reviews team are also side sleepers. So are most Americans. The numbers vary across studies and depend on how rigidly you define "side sleeper," but between half and three-quarters of people sleep on their side for at least part of the night. If you're a side sleeper, you know how crucial it is that your bed keeps your back aligned while the hips and shoulders get some cushioning."
"Updated January 2026: We've revamped this list with two recently tested mattresses: The Rejuvenate by Personal Comfort, which is our pick for side sleepers looking for a smart bed, and the Casper Dream Hybrid for side-sleeping couples, and ensured up-to-date links and prices."
Between half and three-quarters of people sleep on their side for at least part of the night. Side sleepers need mattresses that keep the back aligned while providing cushioning for hips and shoulders to avoid sinking and strain. Insufficient lumbar support causes the middle of the body to sink and increases pressure on hips and shoulders, making pressure relief essential. Testers who sleep on their sides evaluated each model by spending at least a week with it and tracking daily sleep and sensations. Years of collective testing across hundreds of mattresses produced 12 top recommendations, updated in January 2026 to include two recently tested models.
Read at WIRED
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