I listen to the next installment of the audio book I've been following. (currently The Time Traveler's Wife
No need to get up, or turn on the lights, even.
The (midget-sized) CD player is right next to my bed. I just reach over & click it on.
The last thing I do after getting into bed, turning off the lights & falling asleep is listen.
No matter how fascinating I find the material I'm listening to, rarely do I get to the end of each CD before falling asleep.
I think it must be because it takes my mind right away from anything that might be worrying or concerning me. (& I have a very
busy, overactive mind!
And it's a really, lovely, relaxing feeling, being read to!