Sleep Disturbances as a Non-Traditional Risk Factor in Chronic Kidney Disease- University of Illinois

Inclusion Criteria: * CKD subjects will be participants in a larger study, CRIC, at the University of Illinois, Chicago * 30 Healthy controls age and gender matched to 30 CKD subjects, regular bedtimes of at least 6h/night, sedentary lifestyle Exclusion Criteria: * Diabetes * Current or previous dialysis for more than 1 month * Uncontrolled hypertension * Heart failure * Liver disease * HIV * Hemoglobin \< 10.5 g/dl * Treatment with EProcrit, Epogen, or Aranesp * Bone or organ transplant, * Use of immunosuppressive drugs within past 6 months * Current oral contraceptive use * Current pregnancy * Chemotherapy for malignancy within past 2 years