What is Screen cut-off planner before bed for?

Choose the latest sensible screen cut-off from device type, brightness and bedtime. It helps turn bedroom light, screen timing, temperature, humidity or routine clues into one practical next action.

Is this medical advice?

No. Drift Light pages are practical bedroom-environment guides. They do not diagnose, treat or measure medical sleep problems.

What should I change first?

Change one visible bedroom cue first, such as late bright light, close screen use, room heat, damp air or airflow. Keep the rest of the routine stable for a night or two so the result is easier to read.

Bedroom sleep tool

Screen cut-off planner before bed

Choose the latest sensible screen cut-off from device type, brightness and bedtime.

All tools

Practical output.

Use the result as a room test, not as a diagnosis.

Enter your room details

How to use this result

Screen advice gets ignored when it sounds absolute. This planner gives a latest cut-off time and a fall-back rule for nights when the screen cannot disappear completely.

Close, bright, active devices need the biggest buffer. A TV across the room with warm room light usually needs a smaller change than a phone held near the face in a bright bedroom.

Use the result as a boundary for scrolling and work, not as a ban on every calm activity.

Best use

Run the tool, choose one change, repeat it for two or three nights, then compare the room notes. A repeated pattern is more useful than one perfect-looking number.

Next useful pages

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ToolBlue light evening exposure estimatorEstimate evening screen and room-light load before bed, then choose the first reduction step.

ToolBedroom sleep temperature plannerCompare bedtime and morning temperature patterns and choose one room change to test.

ToolBedroom humidity and condensation checkerUse room temperature, RH and window clues to judge next-night condensation risk.

evening lightBedroom light for sleep: a practical evening setupHow to shape bedroom light before bed with warm lamps, screen boundaries and a simple fade.

screensEvening blue light and screens before bedA practical guide to close screens, bright rooms and the last hour before sleep.

humidityBedroom condensation and sleep comfortWhy windows mist overnight and how humidity, ventilation and temperature interact.