Screen Time Before Bed: How Digital Devices Affect Your Sleep

Overview

The relationship between screen time and sleep quality is one of the most important and most frequently violated principles of modern sleep hygiene. Digital screens emit blue-enriched light that directly suppresses melatonin production, the hormone that signals your body it is time to sleep. But the damage goes beyond blue light. The cognitive stimulation from social media, news, email, and entertainment content keeps your brain in an alert engaged state that is incompatible with the wind-down your nervous system needs before sleep. Research has shown that screen use in the hour before bed is associated with longer sleep onset, reduced sleep duration, and poorer sleep quality across all age groups. The notifications and alerts that accompany device use create a state of vigilance that persists even after you put the device down.

Creating an Effective Digital Sunset

The concept of a digital sunset means choosing a specific time each evening after which you do not use screens. Start with 30 minutes before bed and gradually extend to 60 minutes. The transition is easier if you have enjoyable non-screen alternatives ready: a compelling book, a puzzle, a craft, or a conversation with someone you live with.

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