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.
In many cases, the pins and needles feeling can be caused by a sitting or sleeping position and is nothing to worry about. However, if the tingling hands or feet come with other symptoms, like numbness, itching, pain or muscle wasting it can be a sign of nerve damage. This can be the result of diseases such as diabetes, a bacterial or viral infection, toxic exposure or an injury.