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Sleepless from Blue Light: How Smartphones Destroy Our Sleep
6 min read··By GetSleepyFlow Team·Reviewed by GetSleepyFlow Sleep Science Team

Sleepless from Blue Light: How Smartphones Destroy Our Sleep

Blue light in the 460-480nm wavelength range signals "daytime" to your brain — suppressing melatonin production.

Solutions

  • Blue-light blocking glasses after 8 PM (Ra Optics, BLUblox)
  • Night Shift / Dark Mode on all devices
  • f.lux software for desktop
  • Complete device break 60 minutes before bed
  • Red light bulbs in the bedroom

The science

Harvard Medical School studies show that just 2 hours of evening iPad use reduces melatonin production by 23% and delays sleep onset by an average of 60 minutes.

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