We've gathered the best Amazon Prime Da mattress deals and discounts, including on Casper and Nectar mattresses.

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.

The pre-holiday season savings event is officially kicking off on October 8 and ending on October 9, but mattresses are already as low as $218 (with over 1,000 five-star reviews ), and price cuts are as high as 51 percent off top brands like Casper, Nectar, and Purple. (Seriously, this Casper mattress is over $1,000 off right now.)