Insomnia is a state where you are never fully asleep and never fully awake. People with insomnia may find it difficult to fall asleep, may wake up a number of times during the night, may wake up too early in the morning, and may feel very tired upon waking. Disrupted sleep results in daytime fatigue and can lead to anxiety and depression.
Symptoms of insomnia include slowing down, daytime moodiness, sleepiness during the day, general tiredness, irritability, and problems with concentration or memory.
It is estimated that one in ten adults suffer from insomnia and this increases to one in five adults over the age of 65.