1. Restrict artificial light at night
This first tip is one you’ve probably heard me talk about before: restrict artificial light at night. This means devices like computers, smart phones, and TVs, but also ambient indoor lighting. Light from all of these sources—particularly blue light—has been shown to disrupt the production of melatonin, which is the primary hormone involved in sleep regulation.
One easy way to mitigate this effect is to install f.lux on your devices, which will automatically change the display of your computer or smart phone at night to reduce the amount of blue light it emits. However, a better option is to buy amber-tinted glasses to wear after dark, which will reduce your exposure to blue light from ambient room lighting as well. Studies have shown that these glasses are extremely effective at preventing melatonin suppression and improving sleep quality and mood. (12) Uvex and Solar Shield are two popular, inexpensive brands.