Okay, ladies. Not definitive because it could have just been sheer exhaustion... Second night of Melatonin. I kept falling asleep on the couch while I was waiting until I should go to bed after taking it so eventually gave in around 10pm. I woke up hot around 1ish and went to the loo. Went back to bed and back to sleep until about 3:30 - that time I was cold so covered up. Woke up again around 4am but too lazy to get up - did so around 5am as I was getting uncomfortable.