This pillow was recommended for me following a medical sleep study. I stop breathing (20 times per hour) when I sleep on my back. That's every 3 minutes. Add to that the fact that my oxygen dropped 12%, and you KNOW I have a problem.
Given the choice between learning to sleep on my side or wearing a cpap machine for the rest of my sleeping life, I came out and found this turtle-like pillow to help me learn how to safely sleep at night, and bought one. That was two weeks ago. When it arrived, I tried different names for it, "the turtle" "the dove," and finally came up with "the Bump." And so the Bump and I had to become friends.
At first, even knowing I had no choice, I "fought" sleeping with the Bump. I mentally pictured it safely holding me in place, but I still kept trying to turn over in my sleep, and waking up when I couldn't. I must have awakened 20 times or more that first night. The second night was a bit better. And, over the course of two weeks, I finally had my first full night's sleep, waking up once or twice and turning over to my other side, then falling quickly back to sleep.
BUT, even before that first full night, I could tell a difference. I began waking up more alert and aware. I no longer have to take a nap during the day to survive (waking up from the nap even more sleepy and tired). Since the sleep study was able to identify my problem, I know that I am breathing better, sleeping deeper, especially since I am waking up more rested. Even my morning blood sugar has significantly improved.
For those buying this to reduce snoring ... it does that too, by forcing you to lay in the correct position where your throat remains open.
But the primary FDA approval is for Sleep Apnea - particularly the kind that I have, positional sleep apnea.
It is designed to train you to sleep on your side, and to help you be comfortable in the correct sleeping position. It takes time to learn to sleep in this position. In my case, it was two weeks to become comfortable all night long, but for some people, it can take up to a full month. So do not purchase this pillow unless you are willing to make that kind of commitment.