This is why you have muscle cramps at night, and how to prevent that this never happens again!
Muscle spasm can be defined as a sudden, uncomfortable and painful tightening of the muscles, which takes about a few seconds, sometimes minutes. This is one of the worst pains, especially when it happens during sleep.
Leg cramps sometimes indicate that your body does not have water or some specific nutrients, and in other cases it means that you have a serious problem, such as infection of the kidneys.
In order to alleviate take a tablespoon of mustard. Get out of bed and try to walk. Also, shake the legs to activate the flow of blood.