Casper is serving up some seriously Cyber Monday sales on mattress bestsellers, such as the premium foam mattress and the cooling hybrid mattress (ideal for hot sleepers). Everything is up to 40% off—and take 35% off for everything else sitewide, like bedding, mattress protectors, and furniture.

Consumer Reports is tracking the best Cyber Monday sales on mattresses from popular brands like Casper, Tuft & Needle, Bear, Saatva, and more.

Cyber Monday is hours away, but most of the best deals have already started. Here are our favorite mattress deals to shop right now.

For its Black Friday sale, Avocado's organic mattresses are marked down by up to 20%; 50% on bedding; and up to 10% on furniture and pillows. The company makes beds suitable for those with back pain or for chronic side sleepers because you can customize your pillow-top feel as plush, medium-firm, or firm.

Give the gift of comfort and help your loved ones sleep betterBy Samantha B. GordonUpdated by Justin KrajeskiIf you’re looking to upgrade your bedroom without replacing your mattress, there are

Getting a good night’s sleep is one of the best things you can do for your mind and body—and having cuddly, cozy bedding you can’t wait to tuck yourself into can make it that much easier to slip off to dreamland.