Casper is offering some of the deepest discounts on its mattresses we've ever seen

Upgrade your mattress without spending a fortune.
Upgrade your mattress without spending a fortune.

— Recommendations are independently chosen by Reviewed’s editors. Purchases you make through our links may earn us a commission.

The 4th of July is notorious for sparking incredible sales on mattresses. This year, however, the holiday savings came early! Casper, the mattress and bedding brand adored by customers the world over—and Reviewed—is currently having a one-day flash sale that you’re not going to want to miss. For today, June 25, only, you can enter promo code TAKE15 at checkout to get 15% off your entire order. While exclusions apply (it won’t work on sale items, for instance), this discount is on par with the brand's Memorial Day sale, which marked some of the deepest discounts the retailer has ever offered.

Need help finding products? Sign up for our weekly newsletter. It’s free and you can unsubscribe at any time.

In addition to making the best mattress topper we've ever tested, which is typically priced from $195 and drops to $165.75 when you use the code at checkout, we also featured its Original mattress (normally starting at $595 and $505.75 with the code) in our roundup of the best-boxed mattresses on the market. After testing it out for 11 nights, we found it worked particularly well for fans of less firm mattresses, as this one was super soft and spongy.

We loved the topper because it’s made with three layers of foam (an "alt-latex” top layer, a graphite latex middle layer and a viscoelastic bottom) that felt both plush and durable, and its construction consists of a blend of polyester, rayon and lycra. This topper quickly unfurled within one day of arrival (most mattress toppers take at least 24 hours), and we found that it provided for optimal snoozing at night. It also retained its shape well over time and was pleasantly cozy—especially since it readily conformed to our tester’s body shape.

Snag yourself a Casper mattress with this sale.
Snag yourself a Casper mattress with this sale.

As for the retailer's original mattress, our Editor-in-Chief, David Kender, has been sleeping on it for more than four years. He found that it was his perfect mattress, effectively ending his quest to find one that was fit for his sleeping style and preferences. In addition to its easy 100-day trial period, he liked it for its middle-ground softness and firmness, while the breathable top layer and high-quality, luxe design are other stand-out factors. At 10-inches thick, it also has four layers of foam that are designed to support different areas of your body.

The sale extends to all that Casper has to offer, including bed frames, bedding and pillows, but if you’re eyeing anything, I recommend moving quickly—the promo only lasts until the end of today, after all!

Shop the one-day Casper flash sale

The product experts at Reviewed have all your shopping needs covered. Follow Reviewed on Facebook, Twitter, and Instagram for the latest deals, reviews, and more.

Prices were accurate at the time this article was published but may change over time.

This article originally appeared on Reviewed.com: Casper mattress sale: Shop the retailer's one-day flash savings event