We test mattresses of all different types, but there are two mattress designs we test the most: all-foam (made entirely of memory foam) and hybrid (a mattress that uses both springs and memory foam).

I spent about a third of this year sleeping on two different Tempur-Pedic mattresses — the brand’s most and least expensive memory-foam options — to investigate how different they really are. That ...

I was intrigued to see if Simba’s Hybrid Ultra could lessen my back pain and night sweats (and convert my soft mattress-loving wife) ...