The Problem We’re Solving

Silent respiratory decline is one of the most dangerous and least recognized risks in home care. Families can be doing everything right — watching closely, following routines, staying vigilant — and still miss the moments that matter most. Research shows that 20–40% of patients with respiratory illness experience silent hypoxia: dangerously low oxygen levels with no outward signs. Many don’t feel breathless, don’t look distressed, and don’t trigger alarms.

Even more striking, in one study, 50% of discharge‑ready patients developed hypoxia during a simple six‑minute walk test — with no symptoms at all. And while remote monitoring tools exist, a major review found weak and inconsistent evidence that they reliably prevent deterioration or hospitalization.

But the risk isn’t limited to adults with respiratory disease. It affects multiple vulnerable groups:

Down Syndrome: Children with Down Syndrome have extremely high rates of obstructive sleep apnea — 30–97%. Adults face even higher prevalence, with up to 90% developing OSA. These events often include silent desaturation spells that caregivers never see.

Infants: Premature and medically fragile infants frequently experience sudden oxygen drops during sleep, feeding, or illness. Their respiratory systems are immature, and they cannot signal distress. Silent hypoxia in infants is both common and dangerous.

COPD: COPD patients often experience unrecognized desaturation during daily activity, sleep, and illness. Many develop hypoxia without dyspnea, and CO₂ retention can escalate quietly — a major driver of emergency visits and readmissions.

Across all these groups, the pattern is the same:

Families are left to bridge the gap with instinct, vigilance, and hope. Clinicians are left without visibility into what happens between visits. And the home remains the most vulnerable point in respiratory care.

And the cost of this gap is staggering. Respiratory hospitalizations and readmissions tied to silent decline cost the U.S. an estimated $3.4 billion every year — not because families aren’t trying, but because the tools they have aren’t enough.

This is the landscape that shaped Pigeon’s mission — a mission rooted in lived experience, caregiver reality, and the need for gentler, clearer support at home.

Why the Home Is the Blind Spot

Patients spend almost all of their lives outside the clinic — 99% of their time, according to recent home‑care analyses. That means the most critical changes don’t happen during appointments, tests, or follow‑up calls. They happen in bedrooms, living rooms, school commutes, and quiet moments when no one is watching.

Clinicians do their best with scheduled touchpoints — a call at 48–72 hours, a home visit if needed, and a clinic appointment weeks later. But between those interactions, care teams have limited objective information about how recovery or decline is unfolding. Families are left to notice subtle changes, interpret symptoms, and decide when something is wrong — often without tools that can see what they can’t.

And the problem is bigger than missed symptoms:

  • Changes often develop between scheduled interactions. Oxygenation can decline, breathing patterns can shift, activity can drop — and these shifts may persist for days before anyone realizes something is wrong.

  • Patients frequently under‑report symptoms. Fatigue, medication effects, fear of being a burden, or uncertainty about what’s “normal” all lead to under‑reporting.

  • Single measurements rarely tell the whole story. Without knowing a patient’s baseline, a single pulse ox reading or symptom report is almost impossible to interpret.

  • Home monitoring tools are inconsistent. Even the American Thoracic Society notes major knowledge gaps and inconsistent performance in home spirometry and pulse oximetry for chronic lung disease.

The result is a perfect storm:

Caregivers are vigilant, but they’re human. Clinicians are skilled, but they’re distant. And the home — where respiratory decline actually happens — remains the least monitored and least understood environment in the entire care pathway.

This blind spot is the reason Pigeon’s mission exists.

How Pigeon Closes the Blind Spot —The Ecosystem That Sees What Families Can’t

The blind spot in home caregiving won’t be solved by a single device. It will be solved by a connected ecosystem that gently observes, organizes, and communicates the moments caregivers can’t always catch. Pigeon is being built to support exactly that — a future where families have clearer awareness, care teams have meaningful context, and early changes at home no longer slip by unnoticed.

Pigeon’s ecosystem is designed to create a continuous, intelligent information path from the body → to the sensor → to the processor → to the caregiver. Each component will play a specific role, and together they will form a supportive network the home has never had.

Feather & Pin Feather — Wearable Sensors for Real Life

Feather (adult) and Pin Feather (infant/premie) will be soft, wireless nanotextile sensors designed for everyday movement, sleep, feeding, and recovery. They will gather non‑clinical wellness signals such as:

  • skin contact

  • optical patterns

  • motion

Their job will be simple: gently notice the moment it happens — including the quiet ones.

Pearch

Perch will be its own sensor, giving families another way to stay aware — not as a backup, but as a second, equally important window into everyday breathing patterns.

Nest — The Intelligence Layer

Nest will be the processing hub where your proprietary logic lives. It will organize incoming signals and perform:

  • tone‑equity adjustments

  • motion filtering

  • signal smoothing

  • pattern recognition

  • notification logic

  • battery awareness

  • safety checks

Nest will transform raw inputs into clear, readable trends — helping caregivers understand changes they might not notice on their own.

Coo — Clear, Simple Caregiver Notifications

Coo will deliver easy‑to‑read information and gentle notifications directly to the caregiver’s handset. It will be simple and designed for daily life — no apps, no pairing, no phone dependency.

Coo will provide both visual and audible cues, ensuring caregivers stay aware when Nest identifies a meaningful shift. It can be muted when needed, but by default, Coo will speak up.

Coo will be the voice of the ecosystem — the part that says, “Something is changing. Look here.”

PAM — Quiet Partner Awareness

PAM will provide gentle wrist‑based vibration cues when Nest identifies notable shifts in wellness patterns.

PAM will give partners a silent, immediate nudge that something needs attention — without noise, disruption, or waking the household.

Over time, PAM will also support:

  • caregivers who need discreet notifications

  • individuals who prefer haptic cues

  • shared nighttime awareness without alarms

PAM will be the tap on the wrist that keeps partners connected, informed, and supported.

Ducket — The Charging & Safety System

Ducket will manage charging logic and enforce the dual‑unit safety rule:

  • sensors will never be charged while attached

  • one unit will stay on the patient

  • one unit will charge

  • monitoring will remain continuous

  • LiPo risk will be prevented

Ducket will be the guardian of the ecosystem.

Together, They Will Close the Blind Spot

Feather, Pin Feather, and Perch will capture SpO₂, pulse, and tcCO₂. Nest will interpret SpO₂, pulse, and tcCO₂. Coo and PAM will deliver the insight. Ducket will protect the system.

And families will finally have what the home has always lacked:

A future where silent respiratory decline is no longer silent. A future where caregivers are supported, not stretched. A future where the home is no longer the blind spot.