 Helix offers a 100-night trial and a 10- to 15-year warranty to try out your new Helix mattress. Every Helix mattress has a hybrid design, combining individually wrapped steel coils on the base with premium foam layers on top. It's the perfect combination of comfort and support. Even better, they're set up fast and super easy. Helix is offering up to 30% off all mattress orders and...