The best mattress for back sleepers will be one that provides a soothing blend of comfort and support when lying on your back. For most sleepers, this will be a mattress that errs on the firmer side of medium firm in order to keep your spine in healthy alignment with the rest of your body.

However, firmness is subjective, and body type and preference both play a part in how a mattress feels. So how to choose? In our quest to bring you our guide to the very best mattresses to buy online in 2025, our testing team has reviewed over 120 beds. Among those, we have carefully selected those of which impressed our team of testers for their suitability for all types of back sleepers.

With a zoned lumbar crown, customizable firmness options and sturdy dual-coil support system, the Saatva Classic i

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