If you want an Amazon Prime Day mattress, you're going to have to act fast. Today is the last day of the retailer's massive two-day sales event, and Prime Day deals will stop at midnight tonight.

Right now, there are plenty of great deals on cushioned mattresses, both on Amazon and at other retailers. Some of our best mattress picks have discounts right now: in the US, Nectar, Purple, and Casper are discounted; in the UK, Emma, Simba, etc.

There are also a number of deals on some of the best mattress toppers of the year for those who don't want to replace their entire mattress, but want to snuggle up for a bargain. On this page, we've compiled a list of the best mattress deals for Prime Day. With the event nearing its end, if you doze off, you'll lose out. Check out the latest deals on this page!

Don't forget that Amazon Prime Day mattress deals are for Prime members only.

Some of the discounts are so good, they match what we expect to see on this year's Black Friday mattress deals - which is great value. Here are the cheapest mattress deals for Prime Day 2020, both on Amazon and other top retailers.

Mattress deals in the US

Mattress deals in the UK [13]