We all sleep. In fact, it is estimated that the average person spends 26 years sleeping. Now, have you ever thought about the position you sleep in, the impact it may have on your health, and how it corelates to your personality? Professor Chris Idzikowski, director of the Sleep Assessment and Advisory Service, did exactly that. His study, published by the BBC, investigates the most common sleep positions and what they say about our personalities.

The fetus:

This curled sleep position is similar to the one fetuses adopt in the mother's womb. Women are more likely to sleep in this position, when compared to men.

The fetus: personality:

Those who sleep in the fetus position seem to share a personality trait: they may be somewhat difficult to relate to, but are in fact quite sensitive.

Log:

This sleep position resembles a log. Those who sleep in this position lie down in bed on their side, with their arms down.

Log: personality:

Log sleepers tend to be quite sociable. They have no problem trusting other people, regardless of how long they have known them for.

The yearner:

Do you lie on the side with both arms in front when you go to bed? You sleep in the yearner position.

The yearner: personality:

Those who sleep in the yearner position tend to be fairly open people, but they may also be seen as suspicious sometimes.

Soldier:

People who sleep in the soldier position lay down on their backs straight, with both arms on the sides.

Soldier: personality:

When it comes to personality traits, soldier sleepers tend to be more reserved and like to keep their personal lives private.

Freefall:

Do you lay down flat on your stomach with your head turned to one side and hug your pillow when you sleep? This prone sleep position is called the freefall.

Freefall: personality:

Freefall sleepers do not take criticism well and find it particularly difficult to deal with stressful situations.

Starfish:

Those who assume the starfish position lay on their backs with both arms up, often around the pillow.

Starfish: personality:

Starfish sleepers tend to be good listeners and are available to help others. Those who sleep in this position tend to make friends easily.

Best positions: (results)

The study found that the freefall position was the best for digestion, while the soldier and starfish positions may lead to snoring, compromising a good night's sleep.