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.
Numbness and tingling can be caused by a number of factors including: 1  Remaining in the same position (seated or standing) for a long time.  Injury or pressure on a nerve (for example, a back injury can cause numbness in the legs or feet, and a neck injury can cause numbness in the arms and hands).