My right foot and occasionally the fingers in my right hand get semi-numb (pins and needles) when i lay down at night. circulation or nerve injury?

Possibly.. But....: Circulatory and nerve issues are certainly two possibilities, however, more information is need to isolate the cause or causes of your symptoms. It is probably best to begin with a thorough evaluation, beginning with a history and physical, and a systems review directed at your symptoms. A competent family or general practicioner is a great place to start.