Sleep Disorders

Updated 09 May 2018

8 types of insomnia

There are few things worse than being unable to sleep night after night. Here's more about eight different types of insomnia.

Insomnia is the inability to obtain an adequate quality or amount of sleep. The difficulty can be in falling asleep, remaining asleep, or both – leaving the sufferer unrested upon waking.  It can be caused by various conditions, diseases, or circumstances. 

  • Alcohol
  • A food item
  • Medication
  • Caffeine

2. Behavioural insomnia of childhood occurs when children don't have a relatively specific bedtime. If children are not given a consistent bedtimes, they may linger awake for hours at night and set a behavioural pattern that could last.

  • Other sleep disorders
  • Medical problems
  • Psychiatric disorders
  • Stressful events
  • Medication use
  • Other behaviours


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Sleep disorders expert

Dr Alison Bentley is a general practitioner who has consulted in sleep medicine and sleep disorders, in both adults and children of all ages, for almost 30 years. She also researches and publishes on a number of sleep-related topics both in formal research journals and lay publications including as editor of Sleep Matters, an educational newsletter on sleep disorders for doctors.

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