I had weird twitches for the first few weeks and would bite my tongue and wake myself up just as I was falling asleep, and/or grind my teeth. I got a mouthguard and that helped for the first month or so, I don't use it at all anymore.
I have different sleep patterns now, for sure, go to bed earlier and wake up earlier. I had a friend who joked, why quit drinking, then when you wake up in the morning it's the best you'll feel all day. At first I thought, yeah, that sucks, but truth is, I wake up feeling pretty good every morning as opposed to chronically dehydrated, groggy, and slightly sick to my stomach.