My first few days of detoxing were always horrible, at least when I would quit cold turkey. Never really slept right, I'd doze off only to have a nasty nightmare, wake up and repeat. I'd remember every hour on the clock. It was bad for me. Usually by the fourth or fifth day, my sleep patterns would stabilize a bit. About the two week mark I'd sleep like a whole new person.
It takes time. My dreams right now are really odd. But I will say, I am sleeping through the night, may get up around 2am to take a whiz, but otherwise the sleep & dreams/nightmares has gotten much better.
ETA: I understand that remembering your dreams is a good sign you are hitting the REM cycle of sleep, which is good.