No pain at all. It's both hands. I'm not pregnant or retaining water. I do do quite a bit of typing. It just seems that my hands are very prone to "going to sleep" while I am sleeping. It doesn't happen during the day.
I used to have this problem along time ago. Turns out that while I was asleep I would move my hands above my head and lessen the circulation to them. Got a body pillow and threw out the rest of my pillows helped out alot.