Screen time and sleep: what the research actually shows

Scrolling through Instagram or TikTok before bed is a familiar nightly ritual for many in Darwin. But mounting evidence suggests that evening screen time could be doing real harm to our sleep—and in the Top End’s always-on climate, good rest is at even more of a premium.

This matters now more than ever. Sleep clinics and GPs across the Northern Territory have reported a steady increase in sleep-related complaints over the past five years, according to Top End Health Service. The city’s round-the-clock outdoor culture—from the Darwin Runners Club’s early-morning meet-ups on the Nightcliff foreshore to sunset gatherings at Mindil Beach—puts pressure on locals to optimise the hours they do spend in bed. Dr. Andrea Lim, a TEHS specialist in sleep medicine, says, “We’re seeing a real uptick in insomnia and fatigue among young people in particular, and screen exposure in the evening is a big part of that conversation.”

What’s happening in Darwin households

On Smith Street, shelves at JB Hi-Fi are packed with the latest tablets and smart home gadgets, and demand is strong. Students from Charles Darwin University say they rely on laptops and phones to juggle study, casual shifts, and social lives—often well past 10pm. For professionals working from home in suburbs like Fannie Bay and Parap, the dining table has become an after-hours workstation, with screens lit late into the night. Even at the Darwin Waterfront, it’s not unusual to spot people catching up on emails or video calls after dinner, framed by the glow of the Wave Lagoon’s lights.

Local programs are trying to help. TEHS’s ‘Good Night Top End’ workshops at Palmerston Community Care Centre offer practical strategies, with attendance jumping 40% this year, organisers say. Meanwhile, the NT Library’s popular 'Screen-Free Family Storytime' each Thursday at Parliament House aims to coax kids—and their parents—away from devices before bed.

What the research shows

The science is hard to ignore. The Sleep Health Foundation, in its 2025 survey of 5,000 Australians, found that nearly one in three people aged 16-30 report using screens within 30 minutes of trying to sleep. Among this group, average nightly sleep duration dropped to 6.1 hours—short of the recommended 7 to 9 hours—while 42% said they feel unrefreshed when they wake. Blue light from screens suppresses the release of melatonin, the hormone that regulates sleep. Research from Flinders University last year showed screen use after 9pm delayed sleep onset by as much as 50 minutes in young adults.

Screen time’s impact doesn’t stop at late nights. Darwin-based psychologist Sharon Evans estimates that up to 60% of her adolescent clients now report "trouble switching off," most after extended gaming or social media sessions in the evenings. In the city’s heat and humidity, poor sleep can quickly translate to irritability and poor concentration during the school or work day.

Small changes can make a difference

Turning off the phone isn’t always practical—but small tweaks can help. Darcy, a 23-year-old medical student living in Stuart Park, says activating 'Night Shift' mode on her iPhone after 8pm helps. The Sleep Health Foundation recommends setting a digital "curfew"—even 30 minutes of device-free time before bed makes a measurable difference in sleep quality.

Some Darwinians have taken up twilight walks along East Point Reserve or swapped out binge-watching for paperback reads from Cavenagh Street’s Bookshop Darwin. For families, making bedrooms screen-free and using the living area for evening downtime is a simple, effective step. TEHS sleep clinics expect to offer more drop-in sessions next quarter, with details to be announced through their newsletter.

For those struggling despite lifestyle tweaks, local GPs and Top End Health Service offer sleep assessments and tailored advice. As the dry season’s late-night events ramp up, the message from health experts is clear: a mindful approach to screens at night could mean the difference between dragging your feet at sunrise yoga or catching that spectacular Mindil Beach sunrise in stride.