I hated having it on. Once I got used to it, and recognized that I was getting much better sleep when I was falling asleep, it became essential. Now, I have to, and want to, sleep with it on every night. It is not that it does not annoy me still, as it does and I have to be careful how I turn over and lay my head. I am just used to it so the annoyance is minimal now. But there was a number of months up front where I struggled with it.