Since Mars has a slower rotation than Earth, one day (or Sol as it is known) is 40 minutes longer. 

Lucy Cooke is a zoologist and founder of Slothville. 

He conducted an experiment with two groups: 8-hour-sleepers vs all-nighters. 

She also noted that when sloths poop, they travel down from the tree trunks to defecate on the ground – a huge risk.

Nagin Cox has worked on all 3 Mars rovers to date. 

She also observed the Uros people living on Lake Titicaca on floating islands made of the cattail reed.

Julia Watson is an architect studying indigenous low-tech designs.

Walker wrote the book “Why We Sleep” and is an advocate for at least 8 hours each night.