For a period of time, whenever I was about to fall asleep, my hands would start to tingle intensely. The sensation was so uncomfortable that I couldn't sleep. It was incredibly frustrating and exhausting. When I couldn't fall asleep at all, I often had to wait until morning before I was finally able to get some rest.
After experiencing this, I looked up information about what might be causing it. The conclusion I came across was that it could be related to nerve inflammation. Hearing that made me feel a little scared, as it sounded like a serious condition.
The advice I found was to take plenty of vitamin B.