your right leg haven't wake up yet... give it a slap or a pinch first to wake it up... j/k

anyway, looks like it either be nerve problem or your sleeping posture problem. Your sleeping posture might be restricting the blood circulation to your right leg, hence making it numb in the morning when u wake up, and of cos you can't control a numb leg properly.

if it's nerve problem... there could be a growth somewhere in your body suppresing the nerve to your right leg causing the numbness.

either way, stop asking serious health related question online to look for answers from unqualified ppl like us and me
Go consult a REAL doctor today!!!