With the knowledge that the blue light emitted from almost all devices and LED TVs is disruptive to the foundational pathways for sleep, it’s important to take steps to remedy this if you’re having trouble sleeping. First and foremost, do not use your device in bed. At all. In fact, you should avoid using it at least an hour before you plan to go to bed. Do not watch TV in bed either. If your symptoms are severe, avoid TV for at least an hour before you plan to retire. If you have to use a device for some reason, avoid long exposure. You should also consider wearing red-colored lenses for about an hour before bed. The red-color of the lens blocks the blue light from reaching the retina. Blue-light blockers that are clear also exist. You could consider purchasing a pair of these and using them in the evening and while you’re using your device. I’ve recommended a pair from this website: www.blepeyewear.com. As devices age, they tend to emit more blue light. If possible, consider getting a newer device. Finally, many devices come with a night-shift mode. This mode shifts the hue of the screen to a warmer, redder tone. This has been studied to see if it offset the negative effects of the light from a device. Unfortunately, it did not. Melatonin levels were still reduced when using night shift mode.6
In the end, if you suffer from insomnia, reducing your device exposure is likely to have a measurable effect on your sleep. Our devices have become extensions of our lives so it may be difficult to completely eliminate exposure, however, your brain (and your boss) will thank you for the better sleep.
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