All the connected comfort of an Ergo Smart Base, plus TEMPUR-Relax® features: Wave Form™ Massage, SoundScape® Mode and the Wind Down® Program. Features Wave Form™ Massage: Sound-wave vibrations travel from the base through the mattress for a different kind of massage experience. SoundScape® Mode: Connect compatible audio to hear and feel music or relaxing sounds through the mattress. Wind Down® Program: Choose a 10- or 16-minute routine that combines changing positions and massage settings. Automatic Snore Response™: Sleeptracker-AI® can detect snoring and raise the head approximately 12 degrees. This may reduce snoring in otherwise healthy people who snore due to body positioning. Personalized positioning: Adjust the head, foot and lumbar support, with Zero Gravity and one-touch flat presets. Connected convenience: Sleep coaching, a smart alarm, underbed lighting, USB and USB-C ports, and a wireless remote support your nightly routine. Sizes and configurations Twin XL is one base; order two for a Split King. Split King (2 Pieces) and Split California King (2 Pieces) are complete two-base configurations. Queen, King and California King are also available. Match the base to a compatible mattress. Mattress, phone and smart speaker are not included. Compatible app setup and connectivity are required for connected features. Follow the owner’s manual for installation, electrical connection and load limits. Bedding Mart delivery and return terms apply. Warranty 25-year limited warranty. Coverage varies by component and year; the supplied warranty document governs. Keep your receipt and warranty information.