RESEARCH STUDY. Researchers at The University of Chicago are studying the effects of sleep. Healthy Women, age 21 — 50 are needed for this research study. Your participation will require an overnight and separate 3-day stays in the laboratory. You will receive up to $870 for your participation. If you are not diabetic, normal weight, a non-smoker and are interested in learning more please copy paste the link below and complete survey to see if you qualify.