Can cutting phone screen time improve sleep and wellbeing?

Two 2025 trials found short-term improvements after reducing smartphone use. The useful answer depends on what you cut, what replaces it and whether you can sustain it.

Prepared by PoshanSense · AI-assisted educational writing
Our sources and editorial approach · Not clinically reviewed

Complementary human studies · Published 2025

You pick up your phone to answer a message and notice, twenty minutes later, that you are still scrolling. The question is not whether every minute on a phone is harmful. It is whether reducing a part of the habit could leave you feeling or sleeping better.

Cut the habit you mean to change

Work calls, navigation, family contact and an endless recommendation feed can all appear in the same daily total. They are not interchangeable experiences. A useful personal question is therefore more specific than “Are screens bad?”: which use is crowding out something you want to keep?

The recent experiments offer a reason to try a manageable change, not a command to make every screen minute disappear. One limited total smartphone use; another removed mobile internet while preserving calls and texts. Neither asks you to pretend a modern life has no useful digital tasks.

What changed when people used phones less?

The Austrian trial found modest improvements in reported wellbeing, stress, depressive symptoms and insomnia symptoms after three weeks. Average phone time in the reduction group fell to roughly 129 minutes daily during the intervention, rather than every participant perfectly meeting the two-hour request. The control group continued usual use. Read the full trial.

Importantly, use rose again after the intervention, and most group differences did not remain clear at follow-up. That makes sustaining a change part of the answer, rather than an afterthought. A temporary challenge can reveal a pattern without establishing that the same improvement will last indefinitely.

A second trial changed connection, not all screen use

In the US and Canada, 467 iPhone users committed to a trial of blocking smartphone internet for two weeks, with randomised immediate or delayed starts. Participants could still call and text, and could use the internet on other devices. The researchers found improvements in wellbeing, mental-health measures and a computer attention task. Read the blocking trial.

But following the plan was difficult: only 119 met its predefined adherence criterion, and 313 completed all three surveys used in the main repeated-measures analysis. People were largely motivated to reduce phone use. Those facts matter when translating the experiment into everyday advice; “just block everything” is not necessarily an easy or inclusive solution.

The two trials point towards possible short-term benefit from interrupting constant phone access. Their interventions and outcome measures differ, so we cannot pool their participants into a new trial or declare which strategy is best. Neither compared every kind of content or established a limit suitable for all ages and occupations.

Make room for something, not just less of something

A practical experiment could focus on one predictable stretch of discretionary use. For example, someone might put the phone out of reach during a meal or choose a break from a particular feed. Another person might protect a conversation or an evening wind-down. These are everyday options, not separately proven versions of the trial protocols.

Decide what should remain easy to access: necessary calls, work arrangements, transport information or contact with someone you care for. Then notice what the change makes possible. If less scrolling merely becomes more scrolling on another device, the total on your phone may improve without the routine changing much.

A weekly glance at your device's usage breakdown can be enough to identify a pattern. Avoid turning the review into another complicated tracking project. The aim is to reclaim a useful part of your day, not achieve a perfect screen score or compete with someone else's circumstances.

What this cannot diagnose or treat

Questionnaire improvements do not show that reducing phone use cures a mental-health condition. The Austrian participants were not receiving treatment for diagnosed mental disorders. If low mood, anxiety or sleep problems are persistent or affect daily life, seek appropriate support; do not replace treatment with a digital-detox challenge.

Nor can these adult trials set a child or teenager's screen limit. Content, social connection, school demands and family circumstances may change the question. Phone use is a behaviour with a context, not a diagnosis in itself.

The straightforward answer is hopeful but bounded: yes, reducing some smartphone use may help how you feel. Choose a realistic change, preserve what you need the phone for and judge whether the routine is useful enough to continue.

Published 11 October 2026 · Sources checked 11 October 2026. Suggest a correction.