Ads help us keep this sleep calculator free for everyone. Please allow ads to continue.
Find your ad blocker icon in the toolbar.
Look for "whitelist" or "pause" option.
Eight quick questions clinicians use to decide who needs a sleep study. Takes a minute.
S — Snoring. Loud, habitual snoring is the most common visible sign of upper-airway collapse.
T — Tiredness. Daytime sleepiness despite a full night in bed is a hallmark of fragmented sleep.
O — Observed apneas. Even one such observation from a partner is a strong predictor.
P — Pressure. Untreated apnea drives hypertension; the link runs both ways.
B — BMI. Soft tissue around the upper airway is the biggest single risk factor.
A — Age. Airway tone decreases with age, raising risk independent of weight.
N — Neck. Measured around the Adam's apple. Reflects soft-tissue volume around the airway.
G — Gender. Males are diagnosed roughly twice as often as females, though women are likely under-diagnosed.
—