Get a Simmons Beautyrest 10" Hybrid Memory Foam Mattress with prices starting at $319 when you use code SIMMONS in the cart at BuyDig. Delivery is free. The lowest price is for a twin mattress, which drops from $899 to $319 shipped. That's the best price by $45. The queen is another great deal, since it drops to $419, which is the best price we found by $180. These hybrid mattresses use a combination of memory foam and coils for support.