I'm a pro mattress tester — these are the 5 rival Prime Day deals I'd shop

1. Saatva Classic Mattress: twin was $1,399 now $1,099 at Saatva
For most sleepers, I recommend the Saatva Classic because not only can you select the firmness you want, but you can also choose between two heights so it can suit your space and your level of mobility. It's our highest-rated hybrid mattress at Tom's Guide, and it even scored a perfect 5/5 stars in our Saatva Classic Mattress review. After $300 off, a queen-size Saatva Classic is $1,799 (was $2,099). Although it has been cheaper recently, that's still a stellar deal for a hotel-quality mattress that includes free White Glove Delivery, a one-year trial, and a forever warranty.

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

2. DreamCloud Classic Hybrid Mattress: twin was $419 now $356 at DreamCloud
If the Saatva is out of your price range, go for the DreamCloud Classic Hybrid. This mattress-in-a-box boasts a similar level of comfort, although it only comes in a medium-firm. We haven't had a chance to test the DreamCloud Classic, but since it's not a drastic change from what we experienced in our DreamCloud mattress review, you can expect a similar level of full-body support and cozy pressure relief. After an additional 15% off the sale price, a queen-size is now $595 (reg. $699), which is the lowest price we've tracked. As always, DreamCloud includes a 365-night trial and a lifetime warranty.

Our review: ★★★★½
User score: ★★★★½ (9,500+ reviews)

3. Nectar Classic Memory Foam Mattress: twin was $349 now from $297 at Nectar
If you're expecting the classic sink-in feel of the memory foam, you won't quite get it with the Nectar Classic. Instead, you'll enjoy all-over pressure relief without feeling like you're being swallowed by your mattress. It's also one of the best memory foam mattresses we've tested for couples who don't want to feel their partner's movements, as motion isolation here is stellar, as we discovered in our Nectar Classic Memory Foam Mattress review. Thanks to an extra 15% off — which drops the price of a queen-size from $649 to $552 — this is hands-down one of the best mattress values out there, especially when you consider that it comes with a risk-free trial for one year and a forever warranty.

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

4. Helix Midnight Luxe Mattress: twin was $1,436 now $1,048.28 after TOMS27 at Helix
The Midnight Luxe tops our guide to the best mattresses for side sleepers. The lead tester in our Helix Midnight Luxe mattress review has been indulging in its cushy foams and plush pillow top for over a year. Meanwhile, I tested this mattress with the ErgoAlign lumbar support upgrade, and not only did I wake up with virtually no lower back pain, but I also managed to sleep comfortably on my back (which never happens!). Use our exclusive code TOMS27 to drop the price of a queen Midnight Luxe to $1,751.03 (was $2,398.66). Upgrades include the aforementioned ErgoAlign layer and cooling options for hot sleepers. It comes with a 100-night trial and a lifetime warranty.

Our review: ★★★★½
User score: ★★★★½ (7,000+ reviews)

5. Sleep Number c1 Smart Bed: twin was $599 now $499 at Sleep Number
If high costs have prevented you from upgrading to a smart bed, take a look at the affordable Sleep Number c1. Granted, this is a no-frills model that lacks extras such as climate control and Zero Gravity, but it still boasts adjustable firmness and built-in sleep tracking so you can ditch the wearables if you want. (You can learn more about it in my Sleep Number c1 Smart Bed hands-on review.) After pledging not to discount its entry-level smart bed when it was released last year, the current Sleep Number sale cuts $100 off, which drops the price of a queen-size to just $899 (was $999). It comes with a 100-night trial and a 15-year warranty; however, delivery costs extra.

User score: ★★★★½ (600+ reviews)