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.
Cramps or numbness in the hands could be caused by something normal: sleeping in a bad position and blocking blood flow is quite normal. But at other times, it doesnât have anything to do with your position. It is an unpleasant sensation that sometimes shows up in other areas of the body as well, like the legs or feet.