A.D.D.? I've got that problem and when I lay down to sleep I literally have hundreds of random off the wall thoughts come into my mind...

I've tried the technique where I picture the thought drifting off in a cloud but when I start to do that the thoughts come faster than I can picture them drifting away, which sucks.. haha

I've got the same problem and I also constantly have music playing in my head... its passive so even as im typing this theres a song going on in my head. Im interested to see what solutions others recommend