You pick up your phone to check the time, then see a message, a headline, or a video someone sent. Ten minutes disappear, and your attention has taken another lap through the day. If that feels familiar, try a short screen-free window before bed. The goal is not to be virtuous about technology. It is to see what the evening feels like with one less source of input.
Make the experiment easy to start
Choose five or ten minutes—whichever seems realistic. Put the phone on a charger outside arm’s reach, or leave it in another room if that works for your household. Pick a simple replacement: read a few pages, take a shower, fold tomorrow’s clothes, listen to a familiar track, or sit with the lights low.
Do not build a long ritual around the experiment. If you need to keep your phone nearby for a practical reason, turn the screen face down and use only what you need. The idea is to make casual scrolling less automatic, not to create a new rule you cannot keep.

Notice the first few minutes
The beginning may feel awkward. Screens are good at supplying the next thing to notice. Without one, you may become aware of how much momentum the day still has. Let that be information. You do not need to judge the restlessness or force yourself to feel calm.
After three nights, ask which version was easiest to repeat. Maybe five minutes worked better than ten. Maybe reading felt good, while silence felt abrupt. Adjust the experiment around your actual evening.
You are making room to notice the evening arrive.

Try the smallest version tonight. If it helps, keep it. If it does not, you have learned something about what kind of transition suits you better.

Research note
Evening screen exposure can combine light, notifications, and cognitive engagement. Research supports treating a screen-free window as a personal experiment, not a moral rule.
See Chang et al., 2015 — Evening use of light-emitting eReaders — https://doi.org/10.1073/pnas.1418490112.