If you have ever wanted to get paid to lie in bed, then this job is for you: NASA, the European Space Agency and the German Aerospace Center are offering $19000 for people to lie in bed for two months.
For every section of the study you complete, most researchers will pay you anywhere from $25-$100. The big money is when you actually make it all the way to the end of the study and are invited to stay at a sleep center for anywhere from a few days to up to 31 days. You will literally get paid to sleep there.
Bed rest studies offer scientists ways to see how the body adapts to weightlessness. Volunteers spend up to 70 days in bed with a six degree, head down tilt. They must eat, exercise, and even shower in the head-down position.