Your mattress should be the perfect setting for a good night's sleep, so when buying a new bed, you want to get it right.

But the Helix Dusk Luxe isn't the only mattress for back sleepers on sale. In fact, you'll find plenty of beds in this year's best mattress guide for your sleep position. In this ...

A niche product popular with pro athletes and the super-tall, mega mattresses are now finding a wider audience.