Suggested Retail:$849. TWIN XL Mattress Firm 300 Adjustable Base. The Mattress Firm 300 offers a personalized sleep experience with head and foot adjustment settings designed to help alleviate joint pains and provide increased pressure relief. Plus, the wireless remote makes finding your perfect position easy with its backlit buttons and programmable memory option. Designed with high-quality upholstery, the Mattress Firm 300 adjustable bed frame can stand alone as its own piece of furniture or be combined with your existing bedroom furniture. The base is 100% versatile featuring removable legs making this base compatible with all bed sets including platform beds.. 7 DAY FULL REFUND GUARANTEE ON THIS ITEM IF ANY ISSUE IS FOUND THAT WAS NOT DESCRIBED/PICTURED. 7 DAY STORAGE IS ALSO AVAILABLE. SEE NOTES TO BIDDER, IN AUCTION DETAILS, AT THE TOP OF PAGE 1 FOR MORE INFO.