It's a confusing term, but no need to lose sleep over it. We've got the answer, plus the five best hybrid mattresses worth ...

Lindsay Boyers is a certified nutritionist and published book author who writes articles and product reviews for CNET's health and wellness section. Her work also appears on mindbodygreen ...

and I'm always impressed by how these versatile beds combine the supportive springs of the traditional innerspring bed with the body-hugging foams found in the modern all-foam mattress.

But these are the three main mattress types: Innerspring mattress ... s designed with three foam layers—the deepest one is five inches thick to provide a sturdy base that lends durability ...