Screen time and sleep: what the research actually shows

Durham adults who cap evening screen time at under two hours fall asleep 22 minutes faster on average than those who keep scrolling past 9 p.m., according to a 2025 University of North Carolina analysis of local participants.

The finding arrives as longer daylight hours through July push more people to pack work and leisure into the final hours before bed, when blue-light exposure from phones and laptops directly suppresses melatonin release and fragments deep sleep stages.

At the Durham YMCA on Main Street, staff added a 7 p.m. device-free stretching class last month that already draws 35 regulars from the Ninth Street neighborhood. Across town, the wellness program at American Tobacco Campus now posts weekly sleep logs that participants compare against their own screen-use notes.

The UNC data tracked 184 Durham-area adults for six weeks and recorded a 30 percent drop in reported nighttime awakenings among those who switched to paper books or dimmed lamps after dinner. Researchers noted the effect held across age groups and job types, with the strongest gains among people whose jobs required afternoon screen time.

Local patterns and timing

Many Ninth Street residents already shift routines after 8 p.m. by leaving phones in another room and using bedside lamps with warm bulbs. The YMCA class ends at 7:45 p.m., giving attendees a buffer before they head home and prepare for bed without reopening laptops.

Small changes that add up

Start by moving the phone charger outside the bedroom and setting a 30-minute wind-down alarm at 9 p.m. Replace late scrolling with a short walk around the block or five minutes of breathing exercises under low light. Track the difference for one week using a simple notebook entry on wake time and how rested the morning feels. Consult a local medical professional for personal sleep concerns that persist beyond these adjustments.