Four-zone adjustment, dual massage and a built-in sound system in one base. The MotoSleep XSF350MSA adjusts neck, head, lumbar and foot independently, so you can dial in a reading angle, add lower-back support, or hit the zero gravity, anti-snore or TV preset from the wireless remote or the MotoSleep app. Dual multi-level massage runs in the head and foot sections. The Moto immersive audio system plays through the base itself, and a motion-sensing multi-color night light turns on when you step out of bed. USB-A and USB-C ports charge phones at each side. The remote charges by solar cell, so there are no batteries to swap. Child safety lock and anti-entrapment sensors are standard. The solid Soft Form deck lets the mattress curve gradually, and the base folds in one piece for delivery, drops into a platform or storage bed, and includes universal headboard brackets. Twin XL doubles as a split king; Queen and King fit standard frames.