Disclaimer

Please read this disclaimer carefully before treating any SleepLabix estimate as advice.

General guidance, not medical advice

Every sleep estimate produced by SleepLabix — and every point made across the guide articles — is general educational guidance. It is not medical advice, and it should never be used to diagnose, treat, or manage a medical or psychological condition.

The 90-minute cycle method is a practical planning framework. It is not a validated clinical treatment, and no result from the calculator should be treated as a prescription.

Individual cycles vary

90 minutes is an average, not a universal constant. Your actual sleep cycles may run shorter or longer depending on age, health, timing, caffeine, and many other factors. Two people can follow the same calculation and feel very different on waking.

For that reason, give the method a little patience. Use a cycle estimate as a first attempt, observe how you feel, and adjust — rather than assuming a single formula is correct for your body.

When to consult a professional

If you struggle with insomnia, sleep apnea, persistent fatigue, or any ongoing sleep issue, do not rely on an online calculator. Please consult a qualified healthcare professional who can assess your situation properly.

Ongoing problems deserve an expert's attention, not another estimate. Seeking that help early is the single best step you can take.