I had nightmares when I first went to sleep, like 5 minutes into it. I awoke, and went back to sleep and they continued. The 3rd or 4th time I got wokened up, I JOLTED AWAKE, I hate that when that happens!!! I could not even recall that nightmare. My mind hid it from me. Anyway, I had to take an extra Clonazepam to finally get to sleep. I usually take 1 1mg tab at bedtime, but I had to take that 2nd one about an hour later. Then I slept really well after that. I am so grateful.