Mattress Firm launches flash sale on Serta, BeautyRest and Zinus — Cyber Monday only

Beautyrest BR800 13.5" Plush Pillow Top Mattress
(Image credit: Beautyrest)

There's still time to bag yourself a top-rated new mattress at a super cheap price this Cyber Monday thanks to a flash sale at Mattress Firm. The mattress retailer has announced new bigger savings on select mattress brands including Stearns & Foster, Beautyrest and Serta, and the extra savings are bigger than on Black Friday. That makes these Cyber Monday mattress deals your best chance to save big on a comfy new bed from a well-known brand.

We’ve scoured the best mattress deals at Mattress Firm to help you sleep soundly and save money. The Beautyrest BR800 13.5" Plush Pillow Top Mattress is our favorite deal, you can get this queen-size Beautyrest bed from just $489 at Mattress Firm, which not only is 60% off the regular price but it’s also $309 cheaper than buying it from BeautyRest directly. 

The Mattress Firm sale is set to end tonight, so you'll need to move fast if any of the below appeal to you. Here are our three favorite deals in the new Mattress Firm flash sale...

Serta Perfect Sleeper
Was:Now:Saving:
was £1,499.99 now £939.99 at mattressfirm.com

Serta Perfect Sleeper
Was:
$1,299.99
Now: $939 at Mattress Firm
Saving: Up to $814

This memory foam mattress is perfect for side sleepers who want to feel like they are being cradled in all the right places. It’s great for hot sleepers who will keep cool thanks to the Cool Twist Gel comfort foam that will keep you warm and cozy in the winter but pull heat away from the body in the hotter months. You can get this mattress in a queen size for a great price of $939.99, saving you a whopping $560. And that’s not all, if you purchase this mattress via Mattress Firm during their Cyber Monday sale, you will also get a free adjustable bed frame on any queen costing more than $499 or king costing more than $599 by using the code ELEVATE. This mattress also benefits from a 120-night sleep trial and free delivery. 

Beautyrest BR800 13.5" Plush Pillow Top Mattress
Was:Now: Saving:
was £1,219.99 now £489.99 at mattressfirm.com

Beautyrest BR800 13.5" Plush Pillow Top Mattress
Was:
$919
Now: from $369 at Mattress Firm
Saving: Up to $900

This mattress offers a cloud-like experience for all side sleepers. It has pocketed coil springs that move naturally with your body to offer support and reduce movement for a perfect night’s sleep. Couples will love this mattress because of its superior motion. And for anyone with aches and pains, the gel memory foam layer will offer soft support right where it's needed. This mattress is on for an amazing deal, but you’ve got to be super quick because we’ve not seen it any cheaper than this. You can get the Beautyrest BR800 13.5" Plush Pillow Top Mattress at Mattress Firm for a crazy $730 discount. That means a queen mattress will cost you just $489.99 (was $1,219). If you purchase a king size in this mattress, you will not only get 60% off with it costing $599 instead of $1,499, but you can also bag yourself a free adjustable base with the code ELEVATE.  

Zinus Gel Hybrid 10" Mattress
Was: Now:Saving:
was £1,029.99 now £575.99 at mattressfirm.com

Zinus Gel Hybrid 10" Mattress
Was:
$729
Now: $407 at Mattress Firm
Saving: Up to $573

Back, side, and combination sleepers will love this mattress. It’s made using a soft gel-infused foam, which will keep hot sleepers super cool. It also enjoys a layer of 7.5” pocket springs sandwiched between two layers of comfort foam, providing the ultimate support for anyone who wakes up with aches, pains, and stiffness in the mornings. Couples will also love this mattress thanks to the motion isolation, which means if your partner tosses and turns all night, you just won’t feel them. It also offers better pressure relief for your shoulders, hips, and back. This Cyber Monday, Mattress firm offers this mattress for a $454 discount. That means a queen size mattress will set you back just $575 (was $1,029). A 120-night sleep trial is also included, as is free delivery. 

Rachael Penn
Contributor

Rachael is a freelance journalist based in South Wales who writes about lifestyle, travel, home and technology. She also reviews a variety of products for various publications including Tom’s Guide, CreativeBloq, IdealHome and Woman&Home. When she’s not writing and reviewing products she can be found walking her Sealyham and West Highland terrier dogs or catching up on some cringe-worthy reality tv.