I got out of a patch of bad sleeping (hard to get off, then wake up every hour or so) a few months ago with Bachs Rescue Night Remedy. You can get it in Boots. It comes in a bottle with a little dropper. I am not a fan of homeopathic things as my scientific brain tells me there is no basis for them working but it did improve things quite significantly. I took it for about 10 days 20 mins before bedtime and after that my sleep patterns seemed to improve. (I think many sleep problems are linked to anxiety/stress which in turn maybe hormones so it could well be just a placebo effect, but hey if it works). My GP warned me off Melatonin but I figured the homeopathic stuff is pretty harmless. I think sleep patterns ebb and flow in peri and some just have period of bad and better sleep rather than our 'old' pattern - a bit like our periods and moods. Like many of these things it is just an unwanted change which can exacerbate other symptoms.