Those little lights of yours

(Public Domain)

Let your inner light shine, but when it’s time to sleep, turn those outer lights off.

While you’re asleep, ambient light can “activate your autonomic nervous system.”  This could result in an alertness (including a faster heartbeat) which is far from restful.

A lack of soothing rest could lead to insulin resistance, along with an increased risk of diabetes and cardiovascular disease.

Perhaps you live in a place where streetlights and vehicle lights invade your darkened room. You can’t control that, but you can use blackout curtains or an eye mask to mitigate the effects.  If a nightlight is needed to avoid trips and falls, warm-colored bulbs (such as orange or amber) “will stimulate your brain less.”

Resources

https://news.yahoo.com/doing-bed-could-lower-risk-194003533.html