This sounds like Carpel tunnel syndrome. Which is the result of pressure being put on the median nerve as it passes from the wrist into the hand leading to prosthesis, numbness and eventually muscle weakness in the hand. Waking up during the night as a result of pain or discomfort is a normal part carpal tunnel syndrome. It can be helpful before treatment to splint the hands in such a way as to stop them from making a fist during the night. this reduces the tingling and pain to some extent. I had this problem as a result of the inflammation that comes with Rheumatoid arthritis. I ended up getting carpel tunnel release surgery done to both hands (at different times) and have no problem at all with it now. the procedure is known as carpal tunnel release surgery. This is effective at relieving the symptoms and preventing further nerve damage. the sooner this problem is dealt with the better because established nerve dysfunction in the form of static (constant) numbness and muscular atrophy or weakness can often turn out to be permanent.
Carpel tunnel Syndrome affects the hand from the thumb to the middle (lengthwise) of the ring finger. If the the tingling and numbness is occurring in the pinkie side of the hand and halfway across the ring finger you may have a problem with ulna nerve compression which can occur in the wrist elbow joint shoulder or neck. Whichever it is it is wise to get it attended to before permanent damage occurs to nerves and muscles.
Could be poor circulation or it could be neurological.
It could be clogged arteries in the blood stream.
You might be sleeping in a position that pinches a nerve or that pinches your brachial artery, like if you sleep with your head on your arm.
No but your hand would sweat all night
become best friends with your cat and it will want to be around you more and eventually get in your bed. The top answer would work but I suggest not to sleep with your kitten until it is a bit older because you could move in the night and squash it. Also the kitten could fall out of bed and hurt itself. Most cats tend to sleep on their owners beds anyway. 
You should make an appointment with a doctor as soon as possible.
My bed is right in front of an unplugged electrical outlet. So far I've had no health problems. So, no, it will not hurt you (unless your made of metal, maybe)
I sleep talk and it is usually about what I'm dreaming about. I have a phobia of falling and last night I had a dream of falling at my friend's house. I woke her up when I yelled "don't make me fall "IT'LL HURT"!
Lack of blood to your butt or you hurt it, lets say u fell over and landed on it, then your bone might be bruised and it would hurt to sit on it or sleep on it.
Sleep
Old people benefit from bed safety rails. They can't hurt themselven when falling out of bed in the night. Children will also have a safer sleep. And parents don't have to worry about them in the night.
Maybe its just you , gum makes my stomache hurt at night.
You might get into depression because of that. You might get your face changed badly because you cannot sleep at night. You might also hurt yourself because of that.
yes but you would have to wear it every day and night for 6 years
it may or may not