We all know that light can interfere with sleep. Most of us would never even think about going to bed with the lights on.
But it’s not just nighttime light that can affect your sleep. The light that you’re exposed to in the hour before you go to bed can also have a huge impact. If you regularly get into bed, but then find yourself tossing and turning, unable to fall asleep—you might be experiencing the effects of the wrong kind of light before bed.
Why do light levels matter? Are some types of light worse than others? And most importantly, how can you adjust your light exposure to protect your sleep?