What should you know about cause of difficulty sleeping at night?

A changing routine, travel across time zones, late caffeine, alcohol, nicotine, screens, or irregular naps can delay sleep. Worry and low mood can keep the mind alert; burnout may make sleep unrefreshing even when you spend enough time in bed. Acid reflux, pain, itching, hot flushes, or an overactive thyroid can interrupt rest. Loud snoring, gasping, witnessed pauses in breathing, morning headaches, and daytime sleepiness can point to obstructive sleep apnoea. Persistent trouble falling asleep, staying asleep, or waking too early may fit insomnia, but the pattern and daytime effect matter.

Keep a steady wake time, use the bed for sleep, and dim bright light before bedtime. Avoid caffeine late in the day and keep the bedroom cool, quiet, and dark. If you remain awake for a while, move to a calm low-light activity and return when sleepy. Record sleep times, naps, medicines, alcohol, symptoms, and snoring for a short period. Seek clinical advice before using sleep medicines, especially with breathing symptoms or other medicines.

Arrange an appointment if poor sleep affects concentration, mood, work, driving, or daily safety, or continues despite routine changes. Seek urgent help for thoughts of self-harm, severe agitation with little need for sleep, chest pain, or severe breathing difficulty at night.

Could my symptoms suggest insomnia, reflux, anxiety, low mood, thyroid problems, or sleep apnoea? Could a medicine or substance be disturbing sleep? Would a sleep diary or further assessment help?