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Why Sleeping In A Dark Room Is Better For Your Mental Health

Sleep tips

Learn how sleeping in a dark room may be better for your mental health!

Researchers have been studying how light affects our sleep for a long time, but a recent study shows the importance of sleeping with little to no lights. The American Journal of Epidemiology published a study that finds a strong link between exposure to low levels of light while sleeping with symptoms of depression. Continue reading to learn why sleeping in a dark room may be better for your mental health.

The Study

First, it’s important to note that the study used an older group of test subjects, with the average age at about 70 years old. Data was collected from over 860 Japanese participants for over two years, to ensure the study was thorough. All 863 participants reported they had no depressive symptoms at the beginning of the trial.

Throughout the two years, each participant slept in rooms with ceiling-facing light devices attached to their headboards. The devices emitted different amounts of light “lux.” For reference, one lux is similar to a candle, while five lux is similar to a street light shining through a window.

More Light Results In Higher Levels Of Depression

Researchers found that those who were exposed to five lux of light of more experienced higher rates of depression after the two years. The 150 participants who were exposed to five lux of light or more showed a 65% increased chance of developing depression, compared to those who slept in dark rooms. While the participants were relatively old, the link between light and depression is the same throughout all ages. In fact, the study’s co-author, Professor Kenji Obayashi, says that younger generations are at a greater risk of light affecting their mental health, as they spend so much time on their phones or watching TV before bed.

The next time you think about leaving your TV on as you fall asleep, remember to at least put on a sleep timer so it won’t be on all night. Better yet, turn all devices off at least an hour before going to bed to relax your mind and prepare for sleep! Also, try blackout curtains or a quality sleep mask to ensure you’re sleeping in complete darkness.

Sleep Better With All American Mattress

At All American Mattress, we have the expertise and great prices to help you choose the perfect pillows and foam mattress for your bedroom. We have mattresses and bed frames available made from a variety of materials to suit your needs, whatever they are. Stop by our showroom, visit us online, or give us a call at (410) 451-9006 to see how we can get your toddler sleeping through the night. We offer brand names at affordable prices, and we will always work hard to keep your whole family comfortable. For more mattress shopping tips, be sure to follow us on Facebook, Twitter, Pinterest, and Google+.