Awake here too @sister. At 0141, 0356 and 0543. Regular like clockwork, and tonight with a side serve of wicked hot flushes. I was still menstruating in November! I continue wicked astonished that that part of my life is over...
Melatonin is a natural product the body uses to regulate sleep cycles. My nephew and niece were prescribed synthetic melatonin a lot while their mother was dying. It's gentle and non-habit forming. It might be worth asking your gp about it. Can be a bit pricey though I believe.