I have pain on my right middle finger, gets warm and numb and at night falls sleep I want to know if I really need to be concerned about this?

Nerve compression . You may be temporarily compressing a nerve while laying on it or carpal tunnel and cubital tunnel syndromes can cause this as well and can lead to permanent complications if not appropriately treated. Given your symptoms it seems more likely to be carpal tunnel.
Numbness . Numbness to the driver's finger is a serious problem, lol. On a more serious note this could be an early sign of carpal tunnel syndrome or some other neurological problem. Try sleeping with a wrist split and see if the problem improves or goes away.