Researchers are trying to understand how the brain functions during sleep. All animals sleep and have a circadian clock. This clock tells the body when to sleep and when to wake.

Beakman acts like Rip Van Winkle to explain what happens to our bodies when we sleep and the various stages of sleep including REM. Beakman then explains why we sleep with our eyes closed along with eye mucus.

It is scientifically proven that with incentives there is an increase in motivation to do something- this is called the Drive Theory.

Head of the colony must return home, civilians prepare themselves for the possible changes that may occur as a result.

The body goes through five different stages of sleep- the stages constantly repeat throughout the night. This video explains what happens during each stage.