Right now, you can buy the Serta Perfect Sleeper Midsummer Nights mattress in a queen size for just $449 at Walmart. That's the same price as a twin size, but you'll be getting a lot more mattress ...

For Serta Black Friday deals you can shop the Perfect Sleeper mattress collection and save up to $500 off select variants. Learn all about it here.

Cole & Rye Spirit 10″ Queen Cooling Gel Memory Foam Hybrid Mattress $198 (was $599.99) Queen Mattress,Nisien 12 Inch Hybrid Mattress in a Box $184.79 (was $323) ...

A great place to start shopping is with the Serta Perfect Sleeper mattress-in-a-box. Typically listed for $999, the queen memory foam sleeper is available for 10% off at $899.10.