Reuters first reported on the study, published in the journal Sleep Medicine, which showed that sleeping with the lights on is linked with waking up more often in the middle of the night and having more shallow sleep.
Plus, it seems to affect brain oscillations that are linked with sleep depth.
Is it OK to sleep with lights on?
Falling asleep with lights on in your room may seem relaxing, but the truth is, these innocent lights could affect the quality of your sleep. The reason for this is because our body’s sleeping and wake up cycle is connected to light exposure. Our bodies produce a hormone called melatonin in preparation for sleep.
How does light affect your sleep?
Light exposure at the wrong times alters the body’s internal “sleep clock”—the biological mechanism that regulates sleep-wake cycles—in ways that interfere with both the quantity and quality of sleep. Melatonin influences sleep by sending a signal to the brain that it is time for rest.
Why do I sleep better with the lights on?
Light. When we see light, the signal travels through the eye to an area of the hypothalamus that controls melatonin release, the hormone necessary to help you sleep. Then, in the evening when the sun begins to set, the brain starts to release melatonin, so that you’ll be ready to sleep in about two to three hours.
What is the best side to sleep on at night?
And doctors advise pregnant women to sleep on their left side for better blood flow. If you’re a right-side sleeper, all is not lost. Try sleeping on a couch for a few nights and turning to the left to train your body to stick to that side. You can also place a full body pillow behind you to help you stick to the left.