The Ashley Furniture Signature Design mattress is 47 percent off for Prime Day, at $255.54. The 12-inch Queen size mattress promises a supportive and dreamy sleep.

Amazon Prime Day is a great time to score major savings on all your favorite items, but you're not limited to shopping on one site. Many of our favorite brands like Tuft & Needle, Saatva, and Buffy are hosting their own summer deals events where you can save just as much (or more) than on Amazon.

Learn morePrime Day deals end tonight, and it's your last chance to save big on a mattress this summer. We typically don't see prices drop again until at least Labor Day, and even then the discounts won't be as good as Amazon's mattress deals.