Insomniacs tend to complain of aches and pains and sleeplessness, and after a period of sleeplessness, the bedroom becomes associated with anticipation of poor sleep. They brood about not sleeping and why they can’t, which just aggravates it, and this forms a vicious deprivation cycle.

Here are some of the other things that could be disrupting your slumber:

Caffeine
Yes, we know it doesn't affect you but, for argument's sake, give it up for three days and choose rooibos or camomile tea instead.

Alcohol
It may make you dozy at first, but it can interfere with your night's rest, causing you to toss and turn. Moderation is the key, and it's not a bad idea to drink a glass of water for every alcoholic beverage so you won't wake up at 3am with a mouth like the Kalahari desert.

Depression or anxiety
If you lie awake worrying or wake up panic-stricken, you may have a psychological disorder that could respond to medication and therapy. If you have other symptoms, such as a lack of enthusiasm for activities you previously enjoyed, speak to a doctor.

Age
Many older people report that they can get by without as much sleep as before. If this is you, revel in the extra time and use it to do all those creative things you didn't have time for.

Heartburn
Pregnant women and those who've over-indulged in rich food may be woken by indigestion. Sleeping propped up on a cushion or two can help and, next time, don't have that second portion of oxtail stew.

How do you deal with sleepless nights? Share them in the comment box below.