Bear, the maker of our favorite side sleeper mattress, is also running a sale during Prime Day. It's got 35 percent off sitewide with the code PRIME, plus two free pillows with any mattress purchase. It brings the mattress to the price we usually see it available for, though the $150 worth of pillows makes it a bit of a discount.

This is the only Amazon Prime Day mattress deal that matters! See why our shopping editor is adding the 32% off bed to cart.

Save big on your best-night’s sleep with our exclusive link. Take $300 off one mattress $1,000+ at this Prime Day alternative sale.

During our testing process of this mattress, we found that it works wonders for alleviating back pain, and one of the chiropractors we consulted for the story agreed. "This is a true memory foam mattress that will contour to your spine’s unique curves and help alleviate pain,

Saatva offers all kinds of models to fit every type of sleeper. The Saatva Classic is perhaps the most popular (we named the Classic the best overall mattress for stomach sleepers, and also as one of our top mattresses for back pain).