The new Sleepy's By Sealy Hybrid HD Firm Mattress offers comfort, support and cooling technology. Save $300 at the Mattress Firm Memorial Day sale.

The Saatva HD is 15.5 inches high, with a three-inch euro top. Kinsley Searles/Business Insider The mattress is made for people weighing between 300 and 500 pounds, so each design aspect supports ...