HATCH REST 2nd Generation Smart Sleep Assistant for Babies & Kids- Like New. Nightlight, Sleep Sound Machine, Time to Rise notification, WiFi Smart Control App. Create custom rest routines to build healthy habits. Custom colors and sounds. Model HBR4400 Preowned excellent like new condition. There is a chance that some units will say unit associated to another account when you go to setup, if that happens contact Hatch customer service and they reset the unit for you.