The Business Insider Reviews team has tested over 100 mattresses, including the Amazon Basics Memory Foam Mattress in two thicknesses. Former Reviews freelancer Kylie Joyner tested the 10-inch and ...

The 10-inch thick Leesa Mattress is medium-firm and has three foam layers. In addition to the 6-inch core support foam layer, there's a 2-inch memory foam middle layer for pressure relief and body ...