These included initial difficulties in falling asleep. Often this is linked to an anxiety disorder. Some people experience nocturnal awakenings or middle-of-the-night insomnia, which is often connected to pain disorders or illness.
Others awaken very early in the morning, known as early morning wakening and this can be a symptom of clinical depression It is often difficult to get back to sleep or maintain a continuous sleep pattern during the night.
If you have a problem in falling asleep or staying asleep your doctor can refer you to a sleep clinic where there are experts in sleep medicine to help you. Patients who have trouble getting to sleep may have a Circadian rhythm disturbance. However, sometimes people are wrongly diagnosed with insomnia when what they in fact have is delayed sleep phase syndrome or another sleep disorder.