The Helix Midnight is a medium-firm mattress with multiple layers of foam and coils. The top layer is Helix’s proprietary memory foam, which adds cushioning and gives the mattress its medium-firm feel. This layer is also a good choice for back sleepers, as it offers plenty of lumbar support and contouring to keep your spine in neutral alignment. The next layer is a transitional foam, which adds more body contouring and pressure relief for sensitive areas like the shoulders and hips. Finally, the bottom layer is a high-density foam that adds structural stability to the mattress and provides a firm base for the pocketed coils below.

The Midnight has an average customer rating of 4.5 out of 5 stars on Helix’s product page as of January 2024, and more than 4,600 reviews. Many reviewers praise the mattress’s comfort, citing its balance of plushness and sturdiness, as well as its ability to alleviate pain in their joints. Other reviewers note that the mattress is easy to set up and a good value for the price. Helix also has a 100-night sleep trial and a 15-year limited warranty.

If you’re a back or side sleeper, the helix midnight is an excellent option. Its memory foam layers contour to your body’s unique curves, offering plenty of lumbar support and pressure relief. Heavier back sleepers may find the mattress a little too soft, though. Similarly, stomach sleepers may need a firmer bed to keep their hips from sinking out of alignment and causing lower back pain.

However, if you’re lighter than average or prefer a softer bed, you might enjoy the Helix Dusk or Helix Black Luxe, both of which are helix mattresses with a softer feel and are designed for back or stomach sleepers. The Helix Dusk and Helix Black Luxe both offer outstanding lumbar support, with the Helix Dusk having the added benefit of bolstered edge support so you can sleep right up to the edges or safely sit on them before getting out of bed.

If your partner is restless, you should look at the Helix Midnight’s motion isolation and density as well. Its combination of contouring foam and individually-wrapped coils makes for a bouncy, responsive mattress that should isolate movement from your restless partner. The Helix Midnight is also a good choice for people who share a bedroom, as the foams and coils offer decent motion isolation and shouldn’t disturb your partner’s sleep.

While Helix doesn’t sell its mattresses in stores, it does offer a free 100-night sleep trial to let you test the mattress at home. The company partners with third-party companies to coordinate mattress pickup and shipping once the trial ends, so you can get your money back if you decide to return it. Helix’s 10-year limited warranty covers manufacturer defects. However, you’ll need to use a Helix-approved bed frame or foundation with the mattress to avoid voiding the warranty.