6. Try a sleep shield on your smartphone
Consider using a sleep shield on your mobile device to control the amount of light you’re exposed to before bed, advises Breus.
“It filters out that wavelength of light that affects your circadian rhythm,” he says. Circadian rhythms are changes to a person’s environment that affect sleep-wake patterns. Products on the market include the Sleep Shield, which places a transparent polyethylene terephthalate (PET) coating over your mobile device to reduce the amount of blue light that interferes with melatonin production.
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