It seems like Amazon sells everything — and that includes cheap mattresses ... best Amazon mattresses under $400 for a queen, the most popular bed size in the US. These picks are based on ...

In fact, you won’t pay more than $500 for a queen-size with any mattress included in this guide. The price of the best cheap mattresses tend to stay fairly stable, but you will occasionally see ...

Aly Lopez is a writer on the sleep team at CNET. She tests, researches and reviews everything sleep-related, from mattresses and bedding to sleep trends and hacks to sleep technology and supplements.