I haven't used Ativan for sleep, but the two times I've tried to take it regularly for anxiety, I've gotten "rebound anxiety." According to my therapist's resources, it has a very short half-life (I think maybe it was 6-8 hours), and maybe in the beginning, that's just too short for some of us.
I do like it for being fast-acting in a pinch, but if I consider using an anxiolytic regularly, it'll be something other than Ativan for me.
Co-Moderator, Anxiety and Panic Forum
DX: Anxiety, Depression, LPR (acid reflux)
Meds: Paxil, Nexium, Zantac