Suggest bed or wake times using ~90-minute cycles and a short fall-asleep buffer.
Assumptions
~15 minutes to fall asleep, then 4–6 cycles. Individual cycles vary— not medical advice.
Using results
Pick 1–2 times to try; see a clinician for chronic sleep problems.
Not an alarm
Time math only—use copy link to save a scenario.
Frequently asked questions
Why 90-minute cycles?
Popular sleep science rounds cycles to ~90 minutes; individual cycles vary widely.
What is the fall-asleep buffer?
About 15 minutes before counted sleep, then whole cycles.
Time format?
24-hour clock, e.g. 07:00 or 23:30.
Medical advice?
No. See a clinician for sleep disorders—this is a scheduling aid only.
Why several times?
Each option uses a different cycle count—pick the sleep duration that fits you.
Night shifts?
Use 24h clock; mind midnight when interpreting bed vs wake.
Naps?
Geared to main night sleep—not short naps.
Can I save my inputs?
Yes. Copy link below the form keeps your current inputs so you can share the scenario or save it for later.