These are SO hard to find, and I have 2 for sale! Under-mattress gentle vibration system designed for use in the crib. Lullabies, soothing sounds, and heartbeat. Control unit easily mounts to crib rail or can stand alone. Wire-free connection. Ages birth and up. Also has a nightlight to easily check on infant without waking. You can set the control to begin vibrating, or sound when the baby moves.
Email firstname.lastname@example.org to arrange for purchase and pick-up. Will consider mailing with pay pal purchase.