. Let the Light In. Simply having an office window and being exposed to daylight during the workday helped employees in a recent Chicago-based study sleep 46 extra minutes per night. That’s huge if you’re aiming for between seven and nine hours of sleep per night – the “perfect” amount that’s been linked with reduced risk of diabetes, coronary heart disease and anxiety. “Sleep is restorative and a very important part of a healthy lifestyle,” says Marci Goolsby, MD, primary care sports medicine physician at the Women’s Sports Medicine Center at the Hospital for Special Surgery in New York, and much research has shown that natural light can help regulate your body’s internal clock, resulting in a better snooze