This new Pediatrician-recommended 4 Disc Set features the award-winning WombEffectTM Audio Soundtracks that can get your baby to sleep quicker and stay asleep longer. With an estimated anecdotal efficacy of 80%, the Miracle BabySleep SystemTM has been chosen for ongoing clinical research in a leading US Children"s Hospital. Included: CD #1) Ramp to Sleep, CD #2) Sleep Through The Night, CD #3) Adult Sleep, and #4, A bonus DATA DISC (that loads into a computer or laptop), and contains extended-play MP3"s that are 2-hour, 3-hour, 4-hour, 5-hour, 6-hour and 7-hour lengths. Also included an Insert Booklet with baby sleep tips and instructions on best use of the system.