5 king mattresses you can score for under $500 right now

The OEKO-TEX-certified EGOHOME Black 14" features a far infrared cover and two foam layers; ventilated copper-infused AeroFusion memory foam (which is designed to help with temperature regulation) and a thicker layer of high-density support foam to aid with spinal alignment. It's rated as a firm bed, so while it's described as suitable for all sleepers, those who sleep on their back and stomach will likely fare best with it. We haven't reviewed this bed but our EGOHOME Black 12" Memory Foam Mattress review rated the smaller version highly. Right now, a king is down to $408.49 (was $819) at Walmart.

User score: ★★★★½ (1,100+ reviews)

We tested the 10" version in our Zinus Green Tea Memory Foam Mattress review, and found that it was best suited for side sleepers, thanks to the foam 'hug' and excellent pressure relief for the hips and shoulders. This 12" version is slightly taller, but features the same build of comfort layers of green tea memory foam, Zinus comfort foam and a support layer of Zinus base foam, and the feel shouldn't be too different to the 10", which is one of our favorite memory foam mattresses. Right now, you can save $91 and get a king for $269 (was 360.99). This is an incredibly good deal that even undercuts Amazon's price for a king in the 10" model.

Our review: ★★★½
User score: ★★★★½ (164K+ reviews)

Like some of the best hybrid mattresses, the 11" Serta Sleeptrue Firm features a combination of individually wrapped coils (which helps with motion isolation and boosts airflow) and premium foam. There's Cool Twist gel memory foam (where the cooling gel is swirled into the foam) and Pillow Soft Aire foam for cushioning and breathability, plus a soft, breathable cover. Serta describe this mattress as firm, with a "strong lifted sensation complimented by just a touch of give," which means it should suit stomach and back sleepers well. Right now, a king is down to $419 (was $492.96) on Amazon.

User score: ★★★★ (190+ reviews)

Spectacular value for money, the Siena Memory Foam Mattress earned four out of five stars in our review and top spot in our best budget mattress guide. After sleeping on this 10" mattress, we found that it was on the firmer side, but that means it offers support that is "a dream for back and stomach sleepers." And it does a decent job of temperature regulation; we think it'll be tough to find a cooler all-foam bed that's similarly priced. The current Black Friday sale on Amazon is sensational value, offering the lowest prices we've seen, and bringing a king down to $279 (was $399). This deal also undercuts Siena's price, which is $449 if you buy directly.

Our review: ★★★★
User score: ★★★★½ (830+ reviews)

With a spot in our best cheap mattresses guide, the Allswell Mattress is a medium-firm hybrid that offers excellent support for back and stomach sleepers, and great isolation motion for the price and build. There's not much pressure relief, but it has bounce, so you can change positions easily and you'll find great edge support and decent temperature regulation (unless you're a very hot sleeper). It may not have the same durability as more expensive mattresses, but it's excellent value. Right now, a king is down to $364 (was $430) at Walmart, which is a fantastic price for a hybrid.

Our review: ★★★★
User score: ★★★★½ (6,500+ reviews)