I stay in a place in Uk where it's generally cold. It gets around 1-2 degrees at night. But everyday almost at the same time 3-4am at night my sleep breaks and i see either my hair is moderately wet or mild sweat at neck. I have been dealing with insomnia for quite some time. But before I used to have sleep breaking pattern multiple times in the morning but now its just once at night. In the day i don't feel lethargic, but my eye feels dry as if it hasn't got enough sleep. I had cbc, lft, kft, thyroid, sugar, a1c and lipid done before leaving India. All was fine. I am scared now about this sweating. I am not overweight as well, 5'7 with 67kg. And I do not eat junk. My diet was bad for a few days but i have settled in a house and cook for self now. What else could be the issue. Please help me out. This is giving me worries. My lower body won't sweat, mainly frontline hair area and neck.