Zed by Rockit - The Vibration Sleep Soother and Night Light

Zed mimics the feeling of being in a car and soothes babies to sleep.
Recreates soothing low-frequency vibrations that are known to send babies to sleep.
Finely tuned vibrations ripple through the mattress, comforting your baby and encouraging a deep sleep.
Uses special motors that generate both the low-frequency rumbles of the car suspension and the revving of the engine.
Works on any mattress, simply place Zed on the mattress by your baby’s feet and press the snooze button.
Fades out gently after 1 hour, by which time your baby should be into a deeper sleep.
6 calming vibration modes and 3 light levels and an all-night mode.
Requires 2 AA batteries (alkaline batteries recommended).