Localized Body Cooling Technology on Sleep and Metabolism in African, American With Overweight and Obesity

Inclusion Criteria: * African American men and women * Aged 21-50 years * BMI ≥ 27 to 45 kg/m2 * Self-report of short or poor sleepers (\>5 \< 7hrs /night and/or a score \> 5 on the PSQI), * Sleeping between 22:00 and 08:00. * Ability to provide informed consent before any trial-related activities * Controlled hypertension or dyslipidemia. Exclusion Criteria: * Previous diagnosis or reveled during the screening PSG (Polysomnography) of obstructive sleep apnea (AHI≥30) or other sleep disorders based on DSM-V (Diagnostic and Statistical Manual of Mental Disorders, fifth edition) criteria. * Shift work * Diagnosis of diabetes based on history or screening tests * History of cognitive or other neurological disorders * History of major psychiatric disorder based on DSM-V criteria * Presence of unstable or serious medical conditions * Use within the past month of melatonin, psychoactive, hypnotic, stimulant or pain medications (except occasionally) * Caffeine consumption of greater than 500 mg per day * Medically managed weight loss program within the past 6 months * History of bariatric weight loss surgery. * Women who are pregnant, plan on becoming pregnant, are breastfeeding, * Men or women who have a child at home that does not sleep through the night. * Active drug/alcohol dependence or abuse