The Leggett and Platt 50 Series is perfect for an entry level adjustable base. This bases modern design beautifully combines function and fashion, while the frame responds to your bodys natural movements. This is the perfect base if you want to read a book or watch television in bed as it lifts your head to the perfect angle you adjust it to. *Keep your adjustable base protected with Firm Care. This product offers an extended service plan for purchase. Click here for more details.Requirements: Twin Requires 1 Twin base Twin XL Requires 1 Twin XL base Full Requires 1 Full base Queen Requires 1 Queen base King (One Piece) Requires 1 One Piece King base California King (2 Pieces) Requires 2 Cal King bases ALjustable bases can operate in tanLem or separately California King (One Piece) Requires 1 One Piece Cal King base.L&P Limited Warranty.