What should you know about causes of insomnia?

Worry can keep the mind alert at bedtime, while burnout may leave sleep shallow or irregular. Depression can alter sleep timing and cause early waking; anxiety may bring racing thoughts or repeated checking of the clock. Travel across time zones can disturb the body clock, and shift work can do something similar. Pain, itching, reflux, breathing problems, or frequent urination may interrupt sleep. Caffeine, nicotine, alcohol, some decongestants, steroids, and other medicines can also interfere. A bedroom that is bright, noisy, hot, or uncomfortable may add to the problem.

Insomnia may be brief after a stressful event, or it may continue when fear of another poor night becomes part of the bedtime pattern. Daytime sleepiness and difficulty concentrating can follow, even when the original trigger has eased.

Keep a regular wake time and allow your body to build sleepiness naturally. Use the bed for sleep rather than prolonged worrying, scrolling, or working. Reduce caffeine and nicotine later in the day, avoid alcohol as a sleep aid, and keep the room dark, quiet, and cool. A simple sleep diary can show links with travel, naps, medicines, symptoms, and daily stress. If a medicine or health problem may be involved, arrange a clinician review instead of stopping prescribed treatment yourself.

Arrange medical advice when poor sleep keeps affecting daytime function, persists despite consistent routine changes, or comes with loud snoring, witnessed breathing pauses, severe low mood, or distressing anxiety. Seek urgent help for thoughts of self-harm, confusion, or an inability to stay awake safely. A clinician can review symptoms, medicines, mood, sleep timing, and possible underlying conditions.

Could a medicine, mood change, pain, reflux, or breathing problem be affecting my sleep? What sleep schedule should I try? Would a structured insomnia treatment suit me?