A calmer bedtime planner for tonight
Use one private, browser-based sleep timer to plan a bedtime, find a wake-up time, or build a gentle wind-down routine.
A few quiet tools, without another app to manage
For the minutes before bed: a soft checklist and a calm soundscape, both kept only in your own browser.
Tiny bedtime checklist
0 of 4 done
Sound ideas
Choose one soft backdrop
Audio plays in your browser. Tap a card to start or stop.
The math is visible, and the limits stay visible too
Sleep Better Timer works backward from a wake-up time or forward from bedtime/current time. It uses your fall-asleep estimate plus 6, 5, 4, and 3 approximate 90-minute cycle windows, then shows the longer sleep opportunities first.
The tool is useful because it keeps the arithmetic honest: 15 minutes to fall asleep shifts every result by 15 minutes, and crossing midnight is handled as a date change, not a guess. Use the times as planning windows, not as a promise about how refreshed you will feel.
A quiet pause
Try 3 minutes of slow breathing before bed.
No score and no perfect rhythm. Let your breathing become a little softer.
More ways to plan tonight
Good to know
Questions, answered softly
Are sleep cycles exactly 90 minutes?
No. Ninety minutes is a convenient planning estimate, while real sleep cycles vary by person and across the night. Treat the results as a few possible windows, not exact targets.
Does time to fall asleep count?
Yes. The calculator adds or subtracts your selected fall-asleep estimate. With the default 15 minutes, every bedtime or wake-up result moves 15 minutes earlier or later than a zero-latency calculation.
Which result should I choose?
When your schedule allows it, the longer options provide more sleep opportunity. The shorter options are shown for context, not as a routine recommendation.
Already heading to bed?
Skip the inputs. Plan your wake-up windows straight from the current time on your device.
Calculate from right now