Screen Time and Sleep: What the Research Actually Shows

Adults in Santa Ana who use screens within an hour of bedtime lose an average of 42 minutes of sleep per night, according to a 2025 analysis from the Sleep Research Society.

The finding arrives as local wellness programs report rising interest in managing digital habits amid longer workdays and constant notifications. Santa Ana residents already juggle commutes along the 5 freeway and dense urban routines that leave limited downtime before lights out.

Local programs track the shift

The Santa Ana Public Library on Civic Center Drive began offering weekly digital wind-down sessions in March 2025, drawing 180 participants across its first four months. Across town, the Delhi Community Center on South Standard Avenue launched a four-week screen-free evening challenge in January that filled its 60 spots within two days and now runs monthly.

Both sites track self-reported sleep improvements among attendees who reduce phone use after 9 p.m. Library staff noted average gains of 35 minutes in total sleep time for those who completed the sessions.

Evidence on timing and blue light

Research published in January 2026 by the National Institutes of Health examined 2,400 adults across U.S. cities and found that exposure to blue light from phones and tablets after 10 p.m. suppresses melatonin by up to 23 percent. The study also linked consistent late-night scrolling to a 19 percent higher risk of reporting daytime fatigue.

Prices for basic blue-light filter apps or glasses sold at Santa Ana pharmacies start at $12, though researchers emphasize that turning devices off entirely produces stronger results than filters alone.

Residents can start tonight by setting a device curfew at 9:30 p.m. and charging phones outside the bedroom. The library and community center both accept walk-in sign-ups for their next rounds of workshops.