Darker rooms can promote your brain health and improve sleep quality. Proper sleep cycling reduces the risk of diabetes type 2 by promoting insulin sensitivity.

While science discourages sleeping with any light on, a little light in a darkened room can help alleviate fear of the dark. Night lights are designed to help you sleep when battling this fear.

Those tried-and-true tactics include sleeping in a cool, dark and quiet room; limiting screen time and exposure to bright lights before bed; not drinking alcohol or caffeine in the several hours ...