Dear sir/mdm, i have been experiencing numbness on my right arm for some morning when i woke up. some times it persist for the whole morning. thank u.

Pressure: If you are in habit of sleeping om one side, then it can put pressure o the arm, some time the Pressure on the Brachial Plexus can cause Numbness on the arm. Make sure your neck is also not twisted.

Numb in the morning: numbness is called weekend palsy usually travelers not in their own bed it is usually self limited and benign caused by brachial plexus compromise . if associated with other symptoms it requires diagnostic testing under a neurologist