It’s amazing that we can do things as we sleep to hurt ourselves.
If you sleep with your hands clenched tightly or your wrists all curled up it aggravates the muscles in your lower arm. That can cause hand pain.
Sleeping with your hands in those positions can also compress the nerves and blood vessels that pass through your wrist as they travel from your arm to your hand.
What’s the solution?
A brace that doesn’t fit too tightly (you don’t want to cut off your circulation) can help. You still want to have some flexibility in your wrist but not allow it to curl or clench.
Wear the brace only at night so that you can use your hand and arm muscles during the day. That tends to be when most folks clench their hands.
For some people, this is the cure!
Local drug stores usually sell wrist braces but if you cannot buy one you may be able to make your own.
Try this:
Put two sticks (tongue depressors, popsicle sticks or similar flat sticks) in an X. Tape or somehow attach them at the center of the X.
Place the X on your palm so one leg is straight from your arm and one crosses your palm sideways. Then wrap the X with strips of cloth loosely to hold into place overnight.
Don’t make it tight! You don’t want to cut off circulation to your hand. That would cause even more carpal tunnel pain.