I've been a terrible sleeper for years...I wake in the night once or twice, sometimes more, and sometimes for hours at a time.
But I usually fall asleep very quickly. But what I've also noticed is that I will fall into a deep sleep as soon as I turn off the light but wake about 15-20 mins later. I then have to get back to sleep again, which is usually fine.
But why am I falling so immediately and waking so quickly?
And could this be part of a reason I'm a bad sleeper?