A:AnswerIt is strapped to your chest and it gently vibrates when it senses you are laying flat on your back. Once you roll on your side it stops. It has helped me.
A:AnswerThe instructions state the device is not a treatment for sleep apnea. I have been diagnosed with sleep apnea but have found improvement in my sleep with this device; I do not awake feeling as tired as I used to and my wife agrees.
A:AnswerOnce started, the device will delay vibrations for 30 minutes allowing one to fall asleep. It will send gentle vibrations if it detects you are lying on your back but not if you are sleeping on your side. Hope this helps.
