ContactlessPhysiological Intelligence
Our high-fidelity sensor rests under your bedsheet and senses your breathing and heartbeat all night. No wearable, no worries. The raw data is yours immediately, ready for your own AI agent or doctor, or coaching by our experts.
What is your breath telling you right now?
Heart rate and its variability are only half the story for wellness, longevity, and performance. Breath detail is the missing piece that couldn't be tracked until now.
Measure like a lab, without even skin contact.
Fidelity no wearable can reach, simply under your bedsheet. Wearables measure heart function and extrapolate breathing. We measure both directly.
We sense it. You choose who makes sense of it.
Hand it to our experts to give you actionable insights, or work it yourself through your own AI agent or doctor.
Detailed telemetry
Real recordings captured on Glassfrog: an adult in light sleep and an infant napping.
Now showing — …
Live respiration waveform for the selected recording. Resting respiratory rate — breaths per minute, heart rate — beats per minute, heart-rate variability — milliseconds.
Breathing rate is only the surface. Glassfrog sees through it.
A decade of wearables has taught us the value of heart-rate variability (HRV) for performance, recovery, and healthspan. However, this is only half the picture of the complex feedback system between our heart, lungs, and body.
The shape of each breath, the inhale/exhale ratio, breath-to-breath variability, the way the heartbeat rides the breath cycle, and slow waxing-and-waning patterns are rich cardiopulmonary measures vital not only in supporting a healthy cardiac and respiratory lifestyle, but in sleep quality, autonomic recovery, longevity, and infant development.
That breath information, the respiratory morphology, is trapped in sleep labs, spirometers, and ICUs just as HRV was locked inside hospital electrocardiograms until chest straps and then wrist optics democratized it. The true value of measuring your physiology through breath and heart in concert was not observable outside a lab until now. Glassfrog makes it all clear in one signal that's passive, continuous, and at home.
The structure a wearable can't see.
What Glassfrog stands for.
From sensing architecture to product form.
Contactless
No skin contact. Fits your existing sleep environment. Nothing to charge, wear, or remember.
Private
No camera. No audio. No selling your nights.
Agent-First
Most apps lock your health data away. We don't. Feed the full-detail signal to the AI you choose and see the patterns revealed over time.
Signal Depth
See the shape of each breath, and the way the heartbeat rides the breath cycle. Track long-form patterns, variabilities, and interruptions.
Meaningful Insight
Don't stress over an uninterpretable score; act on real steps from our experts and clear data.
Couples? Kids? Pets? Devices? No problem.
Don't worry about the environment. Use any mattress, sleep beside a partner, a kid, or a pet, and keep your devices wherever you like. Your Glassfrog reading is safe from everyday interference because it reads only the body above it.
From breath to insight.
Place the sensor on top of your mattress, under your bedsheet. Thin, flexible, and you won't feel it. It's compatible with any mattress or sleeping arrangement.
We measure tiny changes in density around the sensor through changes in an electric field. As your lungs inflate and deflate, and as blood pumps through your heart, that shows up as changes in density.
Automatically send your raw signal and insights to your own AI agent, to your regular doctor, or to our experts for actions to improve your wellness.
Tracking your signal every night in detail never before possible unlocks new approaches to wellness, stress, aging, and optimal performance.
Regularly check in with our experts for steps to improve your sleep environment and your wellness practices. Never worry about uninterpretable scores again.
Under-sheet soft sensor.
Compact data sender.
Your data orbits you for a single purpose: keeping you at your best.
Your data over time.
Health is often lost in the gap between yearly checkups and the emergency room. By tracking your data orbit in detail over months and years, uncover the trends that matter most.
Whether that means sending your detailed Glassfrog data out, or bringing your other trusted metrics in, we’ve got your back on putting your wellness picture together.
Your data through your direction or our care.
For your direction, we support your analysis, tools, AI agents, and doctors as first class users of your Glassfrog data. You can understand your health, automate your home, make new correlations, test lifestyle changes, and anything you can think of.
For our care, our experts track your trends and disruptions to create scheduled checkins on what’s working well, what you should try, and whether deeper clinical advice is recommended. No score, no anxiety.
Better sensing is only the beginning.
The long-term value of continuous physiological monitoring is not in the raw signal, it's in your wellbeing and performance and healthspan improving over time.
Wider access to heart-rate variability has improved our lives and the research behind it. Breath morphology is next, made possible by Glassfrog.
High-fidelity physiology, read by your own AI agents, our experts, and your doctor together, means a future where you are understood. Your wellness can be acted on.
That future starts with the most detailed non-invasive sensing ever brought to the home.
Be understood in detail over time. Be transparent while you sleep. Be in control of your data.
2026