Disclaimer: Split King and California King foundations are each made up of 2 pieces. You must select a quantity of 2 for these sizes for a complete foundation set Buy 2 Pieces of Twin XL to make 1 Split King TEMPUR-ERGO® EXTEND Engineered for peak performance, our most elite power base combines our most advanced technologies to bring you ultra-customized comfort. Designed in partnership with leading ergonomic experts, PerfectSeat™ lets you relax in a more natural position. This exclusive technology expands a section of the base to optimize the shape of your mattress for sitting, reading, working or watching TV. And QuietMode™ can help alleviate snoring for you or your partner by gently tilting your mattress to an anti-snore position. Advanced features like four-zone massage, USB ports, underbed lighting, zero-gravity presets and virtually unlimited head and foot lift positions will help you fully optimize your sleeping environment. KEY HIGHLIGHTS: QuietMode™: Help relieve snoring for you or your partner with QuietMode™, which gently tilts your mattress to an anti-snore position Wireless Remote with Presets: Control your base with a wireless remote, which includes one-touch preset buttons and backlit, soft-touch function keys so you can adjust in the dark Adjustable Legs: Adapt your bed to your ideal height at any time by shortening or elongating the adjustable legs on your base to flat, 3, 6 or 9 inches Zero Clearance: Fit your power base easily into your existing bedroom furniture, with or without legs. With Zero Clearance, your base will easily fit inside platform beds for sleek, modern bedroom design PerfectSeat™: Designed in partnership with leading ergonomic experts, now you can relax in a more natural position. This exclusive technology expands a section of the base to optimize the shape of your mattress for sitting, reading, working or watching TV Head and Foot Lift: Take complete control of your sleeping space, with nearly unlimited head and foot lift positions, for sitting, reading, working or watching TV Pillow Tilt: Enhance your Head Lift with a slight tilt around your neck – enabling more comfortable sleeping, sitting, reading, working or watching TV Zero Gravity Preset: With the tap of a button, take the pressure off your back while you sleep – elevating your head and feet to closely simulate weightlessness Four-Zone Massage: Double the massaging power. Intensify your mattress massage with four massage zones – two at the head and two at the feet – and three levels of intensity Underbed Lighting: Navigate your bedroom at night without tripping or disturbing your partner with LED underbed lighting, easily activated with your wireless remote. USB ports: Recharge your device while you recharge your body with USB ports on each side of the base. Accurate Stop: Once you adjust to a certain position, it’s locked in for the night. No drifting back to flat while you sleep One-Button Stop: Spills with One-Button Stop. Hit any button on your remote to immediately stop the movement of your base Horizontal King & Cal King Sizing: More size options than ever before across our entire collection of bases. Horizontal bases enable a seamless sleep surface between you and your partner Silent Drive Motors: Silently adjust your side of the bed without waking your partner Dual Motor Drive: Comfort. Faster. Your head and foot position will adjust simultaneously to get you to your desired sleep position faster Child Lock Feature: Via a two-button sequence, completely lock your adjustable base to prevent it from moving when children are present Power Outage Auto-Flat: If the base is raised during a power outage, a battery backup box will return the base to its original flat position Split Sync Pairing System: For Split King and Split Cal King models, a cord is provided to connect the two control boxes if a single remote is desired Radio Frequency Pairing Technology: Enables easy pairing between control box and remote – operating at 2.4GHz Fits furniture: Fits inside standard-size bed frames and furniture, including platform beds. May not be compatible with storage beds. Included: 1 Remote Control(s), 1 Aaa Battery(ies) Features: Backlit Remote, Programmable, Lighted, Usb Port, Adjustable, Zero Gravity Position, Dual Up/Down Buttons Additional Information: Fits Inside A Traditional Bed Frame, Bed Can Be Lowered During Power Outage Or Remote Failure Box Spring: Not Required Manufacturer Warranty: 25 Year Frame, 5 Year Parts Bed Size: Queen Measurements: 59.5 Width/Inches, 8 Height/Inches, 79.5 Length/Inches Maximum Weight Limit: 850 Lbs Assembly: Assembled Base Material: 60% Steel, 30% Wood, 5% Polyester, 5% Polyurethane Care: Spot Clean Country of Origin: Made in US Visit our Furniture & Mattress Customer Care Center for delivery options, protection plans and other services. Problem with an order or need help with a return? Our Furniture & Mattress Customer Service agents will be happy to help. Give us a call at 1-800-442-7902 Designed to support any memory foam mattress or innerspring mattress.