In reply to balmybaldwin:
Can't help except with sympathy.
I actually slept last night (hurrah!) but it's the first time since about a week before Xmas that I have properly. Most nights literally 2 hours and wide awake the rest of the night. Nothing worked. (I get patches of insomnia but this has been the worst ever.)
I do wake up now and then drenched in sweat too (generally) and mostly when the room is really cold. Not sure if I just wrapping up so much there's no airflow or what but it's horrible.