We all have trouble sleeping from time to time, but it can cause serious health problems when it happens almost every night. If you have frequent sleep problems, it is important to find out what the cause is. Sleep deprivation can limit your ability to function during the day.
An occasional night without sleep doesn't necessarily mean your performance will suffer the next day. But if poor sleep is a common occurrence it can lead to various problems, such as concentration difficulties, lethargy, fatigue and drowsiness. These problems are often caused by a sleep disorder.