The Casper mattress I'd buy is on sale today — save 20% on the Casper The One

A woman lying on her back on the Casper The One mattress

(Image credit: Casper)

Mattress brand, Casper is springing forward with a deal you (and your sleep) will love — 20% off the Casper The One mattress in the Casper spring sale. This brings the price of a queen down to $799, from $999.

The Casper The One stands out among the best memory foam mattresses we've tested, thanks to its firm feel and minimal sink. You won't get the classic foam 'hug', but instead you enjoy impressive support for back sleeping.

Want to spring clean your sleep? Our guide to the best mattresses we've tested and can help you find the perfect bed for your needs, and luckily for you, there's always mattress sales to make your pick more affordable. And currently there's 20% off all Casper beds — below I'll explain why I have my eye on the Casper The One mattress.

Casper The One Mattress: twin was $749 now $599 at Casper
A refresh of Casper's popular Original mattress, our Casper The One mattress review team loved this bed for back sleeping. This isn't a foam mattress with a lot of 'sink' but gentle contouring does cushion the joints. While our side sleeping tester was pleased with the pressure relief, it might prove too firm for some. And even during a cool January we found the bed could sleep hot. A mid-range mattress, The One is good value for money and in the 20% off Casper mattress sale a queen will set you back just $799 (was $999.) We rarely see a better saving and you get a 100-night trial and 10-year warranty.

Our review: ★★★★
User score: ★★★★½ (24,000+ reviews)

Not your typical memory foam mattress

Memory foam is best known for its squishy ‘hug’ feel, but you won’t be getting that with the Casper The One. The One is a firmer all-foam bed with limited contouring and almost no sink.

This is the kind of feel we expect from the best mattresses for stomach sleepers and back sleepers. Without sink, the back remains lifted and supported, so you’re less likely to experience back pain.

Sturdy support is more commonly found in the best hybrid mattresses, which use springs to create a stable base. But if you prefer the slow-moving feel of foam (and typically good motion isolation as a result) a firm foam mattress is the way to go.

Or try these instead...

Siena Memory Foam Mattress: twin was $529 now $179 at Siena
The Siena Mattress is excellent value for money. In our Siena Memory Foam Mattress review we found the upper cushioning is followed by a firm base that's most comfortable for back and stomach sleepers. It also has excellent temperature regulation (which is unusual for a budget foam bed.) At just $359 for a queen (was $769) the price is a definite selling point and you get a 180-night trial to test it out. However, due to the low price, we predict some diminished longevity.

Our review: ★★★★
User score: ★★★★½ (2,900+ reviews)

Plank Firm Mattress: twin was $749 now $561.75 at Plank
The Plank Firm is the firmest mattress we've tested (the clue is in the name.) It's also double-sided, and in our Plank Firm Mattress review we found the Extra Firm side provided exceptional full-body support. However, the total lack of sink means we don't recommend this bed for side sleepers. A queen is now $999 (was $1,332) in the sale but if you're not in a rush to buy, we often see a 30% discount over major sales days.

Our review: ★★★★½
User score: ★★★★½ (3,600+ reviews)

Nectar Classic Memory Foam Mattress: twin was $1,081 now $369 at Nectar
Unlike the other mattresses highlighted here, the Nectar Classic has a squidgy, all-foam feel that cradles the joints for some of that 'hug' effect. Our Nectar Classic Memory Foam Mattress review team found that while the comfort layers do offer gentle contouring, the underlying feel is medium-firm — it's a good all-rounder, but some side sleepers might prefer a softer build. A queen has a 'total value' of $1,664, but in the evergreen Nectar mattress sale it's impressive value at $649 and you get a 365-night trial and lifetime warranty.

Our review: ★★★★½
User score: ★★★★½ (50,000+ reviews)

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Ruth is a staff writer at Tom’s Guide, covering all things mattress and sleep. She has a deep interest in the link between sleep and health, and has tried enough mattresses to know the right bed really can make a difference to your wellbeing. At Tom’s Guide she writes to help people sleep better, from how-tos to the latest deals to mattress reviews, and has interviewed an array of specialists who share her passion. Before joining the team at Tom’s Guide, Ruth worked as a sleep and mattress writer for our sister website, TechRadar.