Feeling numbness or tingling in your legs, arms, feet or hands can be a common experience, particularly if you happen to have been sitting or sleeping awkwardly. Limb numbness, tingling or lack of sensation is often attributable to pressure on the nerves or reduced blood flow. Once the pressure is released from the nerve, symptoms usually resolve.
The occasional bout of numbness is a harmless event. However, if you experience numbness in a limb over a long period to time you should seek medical advice, as it could be a sign of an underlying condition.