How to use this result
The original Drift Light idea was memorable because it did not ask the user to manage a complex system. The lamp simply drifted down toward bedtime. This simulator keeps that simple visual rhythm and lets you preview the timings.
Use it to match the fade to a real bedtime, not to chase a perfect brightness number. The useful cue is the repeated transition from normal evening light to a lower, quieter bedroom state.
The curve is a routine aid, not a calibrated lighting instrument.
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.
Bedroom sleep context
This page belongs to the evening-light cluster: how a bedroom moves from normal living light to a lower, warmer and less stimulating state before the sleep target. The useful signal is not one perfect bulb value, but the visible pattern of direct light, lamp position, brightness, timing and whether the final routine feels different from the rest of the evening.
Practical inputs to compare: Use time, lamp type, brightness setting, distance from the bed and repeatability as the practical measurements.
How to read the result: Treat these inputs as a bedroom pattern, not a one-night verdict. If the same cue shows up on several ordinary nights, the next change is easier to choose and easier to reverse if it does not help.
- warm light
- bedside lamp
- ceiling light
- glare
- colour temperature
- dimming routine
- 37-minute fade
- low indirect light
Keep it narrow: Do not change lamp type, screen cut-off, bedding, window opening and wake time on the same night. Hold the other cues steady so the page stays linked to one room question.
