Position three shows the sleeper lying on their back with both arms and legs spread outward.
This is sometimes described as a “starfish” position because the body resembles a star.
It is also the pose that looks like someone has completely claimed the entire mattress.
If you've ever shared a bed with someone who sleeps like this, you probably understand the struggle.
One person may start the night comfortably in their own half of the bed. Several hours later, however, they discover that their partner's arms and legs have somehow migrated into every available space.
Despite the humorous stereotype, spreading out during sleep can have a practical explanation. Some people simply prefer having unrestricted space around their bodies. A wide posture can prevent the feeling of being cramped, particularly for people who naturally dislike sleeping curled up.
There is also a comfort factor.
The sleeper may unconsciously move their arms and legs into positions that reduce pressure on certain areas of the body.
The image jokingly connects this position with laziness, but the reality is more interesting: sleeping with your limbs spread out tells us very little about your motivation during the day.
Someone can sleep like a starfish and still wake up early, exercise regularly, work hard, and have an extremely busy schedule.
So if this is your position, don't let the picture expose you too much.
Your bed may simply be your territory.
Chapter 4: Position Four — The Curled-Up Sleeper
Position four shows a person sleeping on their side with their knees drawn upward and their hands close to the face.
This is a classic curled-up position.
Side sleeping is extremely common, and many people naturally find it comfortable because it creates a feeling of security and support.
The curled posture can also help people feel warm. By bringing the knees closer toward the torso, the body occupies less exposed surface area.
Personality theories sometimes associate curled sleeping positions with sensitivity, caution, or a preference for comfort. But once again, these claims should not be treated as psychological diagnoses.
Your body position while sleeping is not a reliable personality test.
There are, however, practical reasons why side sleeping can be attractive.
For some people, sleeping on the side feels more comfortable than lying flat. It may also be preferred by people who experience certain types of snoring or breathing difficulties.
The exact position matters, though. Excessive twisting of the neck or spine can create stiffness, especially if the pillow does not provide appropriate support.
A good pillow should generally keep the head and neck in a reasonably neutral position rather than forcing the head sharply upward or downward.
So if you are a position-four sleeper, the bigger question isn't whether you're lazy.
It's whether your pillow is doing its job.