Evening Device Use Cuts Coventry Adults' Deep Sleep by Nearly One-Third

A 2025 analysis of UK sleep tracker data found that adults logging more than two hours of screen time after 9pm recorded 30 percent less deep sleep on average.

The finding arrives as Coventry residents report longer evenings spent on phones and tablets during the summer months, when daylight lingers past 9pm. Local GPs have noted a steady rise in sleep complaints since May, with many patients describing difficulty falling asleep despite feeling tired. The pattern matches national trends but shows up clearly in city postcodes where broadband speeds and device ownership sit above the regional average.

Coventry programmes already testing limits

Two local efforts now target the issue directly. Earlsdon Library runs weekly digital-detox sessions on Wednesday evenings at its Coventry Road branch, where participants leave devices in lockers and track sleep the following week. Across town, the Coventry Sports and Leisure Centre on Fairfax Street added a 7pm phone-free yoga class last month that draws 25 regulars, many from Hillfields and Foleshill. Both programmes started after council public-health staff reviewed the same tracker data and asked for practical outlets.

Evidence from the University of Warwick’s 2025 study of 500 Coventry volunteers backs the local approach. Participants who capped screens at 30 minutes before bed fell asleep 12 minutes faster and spent an extra 18 minutes in deep sleep after four weeks. The study also recorded a £48 average saving on over-the-counter sleep aids among those who stuck to the limit.

City health workers plan to expand the library sessions to three more branches by September and will share the Warwick numbers at a public meeting at the Herbert Art Gallery on 22 July. Residents can join a waiting list for the next phone-free yoga block through the leisure centre website or by calling the centre on 024 7697 1234.