Insomnia, causes and treatment

Insomnia is difficulty getting to sleep or staying asleep for long enough to feel refreshed the next morning.

It’s a common problem thought to regularly affect around one in every three people, and is particularly common in elderly people.

If you have insomnia, you may:

  • find it difficult to fall asleep
  • lie awake for long periods at night
  • wake up several times during the night
  • wake up early in the morning and not be able to get back to sleep
  • not feel refreshed when you get up
  • find it hard to nap during the day, despite feeling tired
  • feel tired and irritable during the day and have difficulty concentrating

Occasional episodes of insomnia may come and go without causing any serious problems, but for some people it can last for months or even years at a time.

Persistent insomnia can have a significant impact on your quality of life. It can limit what you’re able to do during the day, affect your mood, and lead to relationship problems with friends, family and colleagues.

How much sleep do I need?

There are no official guidelines about how much sleep you should get each night because everyone is different.

On average, a “normal” amount of sleep for an adult is considered to be around seven to nine hours a night. Children and babies may sleep for much longer than this, whereas older adults may sleep less.

What’s important is whether you feel you get enough sleep, and whether your sleep is good quality.

You’re probably not getting enough good-quality sleep if you constantly feel tired throughout the day and it’s affecting your everyday life.

What causes insomnia?

It’s not always clear what triggers insomnia, but it’s often associated with:

  • stress and anxiety
  • a poor sleeping environment – such as an uncomfortable bed, or a bedroom that’s too light, noisy, hot or cold
  • lifestyle factors – such as jet lag, shift work, or drinking alcohol or caffeine before going to bed
  • mental health conditions – such as depression and schizophrenia
  • physical health conditions – such as heart problems, other sleep disorders and long-term pain
  • certain medicines – such as some antidepressants, epilepsy medicines and steroid medication

What you can do about it

There are a number of things you can try to help yourself get a good night’s sleep if you have insomnia.

These include:

  • setting regular times for going to bed and waking up
  • relaxing before bed time – try taking a warm bath or listening to calming music
  • using thick curtains or blinds, an eye mask and earplugs to stop you being woken up by light and noise
  • avoiding caffeine, nicotine, alcohol, heavy meals and exercise for a few hours before going to bed
  • not watching TV or using phones, tablets or computers shortly before going to bed
  • not napping during the day
  • writing a list of your worries, and any ideas about how to solve them, before going to bed to help youforget about them until the morning

Some people find over-the-counter sleeping tablets helpful, but they don’t address the underlying problem and can have troublesome side effects.

 

Treatments for insomnia

Your doctor will first try to identify and treat any underlying health condition, such as anxiety, that may be causing your sleep problems.

They’ll probably also discuss things you can do at home that may help to improve your sleep.

In some cases, a special type of cognitive behavioural therapy (CBT)designed for people with insomnia (CBT-I) may be recommended.

This is a type of talking therapy that aims to help you avoid the thoughts and behaviours affecting your sleep. It’s usually the first treatment recommended and can help lead to long-term improvement of your sleep.

Prescription sleeping tablets are usually only considered as a last resort and should be used for only a few days or weeks at a time.

This is because they don’t treat the cause of your insomnia and are associated with a number of side effects. They can also become less effective over time.

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