PERSONALIZED SUPPORT: 3 select foam layers provide tailored pressure relief and targeted ergonomic support to make this the perfect option for SIDE SLEEPERS and toss and turners. COOLING: Cool-to-the-touch GlacioTex Cooling Cover to keep you cool and comfortable. ENHANCED COMFORT: Up to 1,000 individually wrapped steel coils with targeted zoned lumbar support helps with spinal alignment and back pressure relief + reinforced perimeter cradless sleepers and limits motion transfer. MEDIUM FEEL(Midnight): Premium pressure relieving foams contour to your hips and shoulders for a balanced feel; 6 out of 10 on firmness scale with 10 being the firmest. ONLY THE BEST MATERIALS: This bed in a box mattress is Fiberglass-free, GREENGUARD Gold certified, and made with CertiPUR-US certified foams. Each mattress is carefully assembled in our own Arizona facility and delivered right to your door. We want you to be happy with your mattress and that's why we offer a 120 night sleep trial and a Limited Lifetime Warranty. Go beyond one size fits all and find a luxury mattress that’s made for your unique sleep preferences. The Helix Midnight Luxe is our most popular premium mattress designed with a medium feel, specifically tailored for side sleepers, those who toss and turn at night, and is great for couples. The Midnight Luxe is widely recognized as one of the highest-reviewed mattresses across the internet and is considered a 5-6 on the firmness scale with 10 being the firmest