This could be due to some neuropathy or it could be the way that are sleeping. I know if I sleep with my hands over my head, I can have numbness and pins and needles in my arms, but it clears when I get up and start moving around.
Here's some info on neuropathy:
http://www.healthcentral.com/diabetes/c/110/74663/diabetic-neuropathy
http://www.healthcentral.com/diabetes/c/17/75667/neuropathy
http://www.healthcentral.com/diabetes/c/17/72835/triglycerides
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