Apr 16, 2009, 6:39 PM. i was at beijing, xian and shanghai end november/early december last year. it was chilly in beijing and xian. about 7-10 degrees in the day and close to freezing point at night, but still manageable. further south in shanghai, it was rather warm, actually.
Possible Causes of Numbness While Sleeping. Numbness while sleeping can be among the causes of insomnia when the loss of sensation interferes with the ability to stay asleep through the night. Pinpointing the cause of the problem can lead to a viable solution.
This nerve gives sensations to the fingers and innervates forearm and hand muscles that enable you to hold an object between your forefinger and the thumb. Any numbness, tingling, impingement, or pinching in the median nerve will lead to pain in the fingers, hand, and forearm. The first symptom is fingers falling asleep or becoming numb at night. The numbness and pain may extend to the forearm and sometimes to the shoulder. 8. Other Causes. Diabetes causes arms or hands and feet to fall asleep even when one is awake and relaxed. Hand surgery and arthritis damage or irritate the nerves.