Can depression cause insomnia?

Low mood can bring rumination, reduced relaxation, changes in body clock, and loss of routine. Pain, anxiety, medicines, alcohol, and other health conditions may also disturb sleep. For some people, sleep becomes excessive rather than short. Insomnia can also worsen concentration, irritability, energy, and mood, so the two problems may reinforce each other.

A clinician will ask about bedtime, waking, naps, snoring, breathing pauses, mood, and how daytime function is affected. Keeping a simple sleep and mood record can show patterns without turning one difficult night into a diagnosis.

Keep a regular wake time, use the bed mainly for sleep, and get daylight and gentle activity during the day. Reduce late caffeine, nicotine, alcohol, and bright screens if they interfere with settling. If you remain awake for a long time, move to a quiet, dim setting and return when sleepy. Do not start sleeping tablets or supplements without checking their suitability.

Arrange an appointment if sleep difficulty continues, affects work or safety, or appears with persistent low mood. Read Depression and Insomnia for related information to discuss with your clinician.

Seek urgent help if depression brings thoughts of self-harm, hopelessness with inability to stay safe, or severe confusion. Get prompt medical advice for several nights of very little sleep with unusually high energy, racing thoughts, impulsive behaviour, or feeling detached from reality. Avoid driving when sleepiness makes attention unreliable.

Ask whether depression, anxiety, a medicine, sleep apnoea, pain, or another condition may be affecting sleep. Ask about talking therapy, sleep-focused behavioural treatment, medicine options, and a review plan. Bring your sleep record and mention naps, snoring, alcohol, caffeine, and any change in mood or energy.