A friend woke up one morning & her right hand & wrist was numb. she can feel her fingertips but cant use her hand for anything it just flops down ?

Injury can occur if: a person sleeps on their arm. I hope that she had this medically evaluated if the the problem did not promptly resolve.

See a doctor now: I m not certain your friend is 35 years old or you are. However, this is very worrisome a presentation of symptoms and demands immediately evaluation...that means today.

I am going to try: It sound to me like what we call Saturday night palsy, or some thing like it. Saturday night palsy from falling asleep with one's arm hanging over the arm rest of a chair, compressing the radial nerve at the spiral groove. Crutch palsy from poorly fitted axillary crutches. Squash palsy from traction forces in a manner usually associated with the sport squash.

Radial nerve Palsy: Awakening with numbness of the hand and wrist is most likely due to sleeping in a position that causes pressure on the radial nerve that runs down the inner aspect of the upper arm. The paralysis often resolves on its own without treatment. If the paralysis continues longer than a day, see a doctor. Splinting and physical therapy may be necessary for preservation of function.

Urgent problem: If your friend is unable to move her hand and there has been no injury, please take her to the emergency room. This is a problem that deserves urgent/emergent attention today. There may be a blood clot that needs emergency attention by a Hand Surgeon. Of course, if there was trauma involved, I would still recommend ER evaluation now. Such events are uncommon, but do occur, go to ER now