Free Sleep Tools
Screeners for before a diagnosis, and calculators for life on CPAP. Free, with no account.
Have your SD card? Import it instead to see your own nightly numbers, read in your browser and never uploaded.
Which tool do I need?
Think you might have sleep apnea?
No test yet
Have a score or a result
- AHI Score Lookup An AHI from a sleep study or your machine, and what it is read against.Lookup
- STOP-Bang Score Interpreter Have a STOP-Bang total? See its risk band, including the rule for some 3s and 4s.Score explainer
- Epworth Score Interpreter Have an Epworth total from your doctor? See its published band.Score explainer
- ISI Score Interpreter Have an ISI total? See its band and what a change means.Score explainer
Already on CPAP?
Night to night
- Sleep Cycle Calculator A bedtime or wake time from 90-minute cycles, with mask setup time.Calculator
- Mask Finder Quiz Six questions matched to mask styles to try with your supplier.Quiz
- Compliance Calculator Your hours against Medicare's 70 percent, four-hour rule.Calculator
- CPAP Troubleshooter Dry mouth, leaks, noise and more, with ranked fixes to try.Fix finder
- NOSE Scale Five questions on a blocked nose, read with mask choice in mind.Screener