Inside this sweet sheep is a secret sleep solution for little ones – a sound machine that plays 8 soothing sounds and melodies. Favorites like Rockabye Baby and a mother’s heartbeat are proven to help children go to sleep faster. Two sleep-timer options with auto shut-off. The machine-wash sheep has a hook-and-loop fastener to attach to a crib or stroller and requires 2 AA batteries (included). 13.9”H.