We have a 2 1/2 year old boy with sensory processing disorder. It was taking him anywhere from 1 to 2 1/2 hours.(sometimes even more) to calm down enough to fall asleep for naps & nighttime. He wasn't cryin or unhappy, just talking & kicking walls, etc. That's evn with a weighted blanket and melatonin (for night). Not knowing what else to do, I decided to try this. I ca not even begin to tell you what a difference it made for him!!! He's asleep before the automatic shut off at half an hour & hardly budges an inch between being laying down & falling asleep. So soothing for him! Life saver.