Detect Sleep Apnea with H-Core — Overnight SpO₂ Monitoring
You don't know you stop breathing in sleep — but H-Core does
Sleep apnea affects millions of people without them knowing. The clearest symptoms — loud snoring, waking up exhausted, daytime sleepiness — are often dismissed. H-Core monitors SpO₂ continuously throughout the night and detects repeated oxygen drops — the critical warning sign to see a doctor at the right time.
The challenges you face
Loud snoring isn't just annoying to others
Loud snoring accompanied by sudden breathing stops is the classic sign of sleep apnea. Each apnea episode drops SpO₂ — forcing the heart to work harder to compensate. Long-term, this increases hypertension and cardiovascular disease risk.
Waking exhausted despite enough sleep — sleep apnea may be why
Each apnea episode disrupts the deep sleep cycle. You can sleep 8 hours but your body never truly recovers because it's constantly interrupted. H-Core shows both overnight SpO₂ and sleep architecture.
Accurate diagnosis needs data — not just feelings
For a doctor to assess sleep apnea risk, you need SpO₂ data over time — not just a single measurement. Overnight SpO₂ history from H-Core is valuable information to bring to a consultation.
How H-Core solves this
Continuous SpO₂ All Night
H-Core measures blood oxygen levels continuously during sleep. If SpO₂ drops below 94% repeatedly during the night, the app alerts and records the data for you to review in the morning.
Explore feature →Sleep Architecture Analysis
Track the ratio of deep sleep, REM, and light sleep each night. Sleep apnea typically causes a significant reduction in deep sleep — clearly visible in H-Core's nightly charts.
Explore feature →Overnight Heart Rate & Abnormal Patterns
Heart rate spikes at night combined with SpO₂ drops are a characteristic pattern of sleep apnea. H-Core records both metrics in parallel, helping identify this pattern over time.
Explore feature →Monitor Nighttime SpO₂ — Know Early to Act in Time
SpO₂, sleep, and heart rate 24/7 — no monthly fee.