Sydney Research Links Screen Time Before Bed to Sleep Loss

A 2025 University of Sydney analysis of 1,200 adults found that participants who scrolled phones or tablets within 60 minutes of bedtime took 29 minutes longer on average to reach deep sleep stages compared with those who avoided screens.

The pattern stands out now because more workers in Sydney log extended hours on laptops and phones while juggling outdoor routines, with evening light exposure from devices clashing directly against the city’s push for earlier wind-down times after long commutes along the Eastern Distributor.

Bondi and Surry Hills routines show the split

Runners finishing sessions along Campbell Parade at Bondi Beach often check fitness apps before heading home, while participants in evening classes at the Yoga House on Devonshire Street in Surry Hills report switching to paper logs instead of phones to mark progress. Centennial Parklands morning groups have added optional device-free zones near the duck ponds for walkers completing loops before 8am.

Numbers from local tracking

Blackmores data released in March 2026 showed sales of blue-light filter glasses rose 41 percent in New South Wales stores, with units priced at $29 at the Surry Hills Chemist Warehouse outlet on Crown Street. The same report noted that 62 percent of surveyed Sydney adults used screens in bed on at least four nights per week last year.

Residents can test a 45-minute cutoff before lights out by charging phones outside bedrooms and switching to paper books or low-light lamps. Local GPs at the Bondi Medical Centre on Hall Street recommend tracking sleep with simple wristbands rather than phone apps for the first two weeks to measure any shift in wake times.