It is from not moving your leg for a while. You could be sitting on it and not giving it oxygen through the blood flow, so your leg gets a tingly feeling because it is not receiving enough oxygen.
I hope this is right!
They sleep with one leg up because when they go to sleep they shut down half their brain.
Could be Restless Leg Syndrome (or too much coffee!)
restless leg syndrome, or can be the side effect of taking pain meds
Go to http://www.buzzle.com/articles/sleep-talking.html and/or http://www.webmd.com/sleep-disorders/talking-in-your-sleep
illnesses, diabetes, go see a doctor
Stress causes no sleep
lack of blood supply to the surrounding tissues
Yes. You may be compressing your sciatic nerve, and that is what causes leg/behind pain.
Sciatica
It may have been twisted or stuck under your other leg. this may have triggered shortage of blood to those areas wich causes those symptoms.
none, they can levitate... hope i was helpful :D
Restless leg syndrom is very dangerous. It will cause lack of sleep, which left untreated, can cause sleep deprivation. Now, more knowledge about restless leg syndrom has been discovered, so many people can sleep.