Serta Simmons Bedding, the nation's largest mattress manufacturer, is further expanding its bed-in-a-box offerings, upping the game in an increasingly competitive industry. The Atlanta-based ...

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 ...

Queen Mattress, Memory Foam Mattress Queen Size, 10 Inch Hybrid Mattress in a Box with Individual Pocket Spring for Motion Isolation & Silent Sleep $158 (was $275.99) ...