System Design · Healthcare Case Study
Nyx: A personalized care ecosystem with a Digital Twin for OSA
Enabling personalized, proactive care through digital twin technology for Obstructive Sleep Apnea patients.
Project Overview
Nyx is a speculative but research-backed product-service ecosystem designed to reimagine self-regulation for people with Obstructive Sleep Apnea.
It uses an AI-powered digital twin, a smart CPAP machine, and a companion health-tracking app to shift care from reactive to proactive — helping users stay ahead of their condition.
My Role
UX & System Design, Research, Interaction & Visual Design
Timeline
2026 · 8 weeks
Tools
Figma, Prototyping, Systems Mapping
Domain
Healthcare · Sleep Health · AI
The Impact
85%
Rule clarity rate
Users correctly interpreted parking rules without assistance.
<2min
Time to first value
Users found a valid parking spot quickly after opening the app.
4.4/5
Confidence score
Users felt confident choosing a parking spot.
38%
Admin overhead
Fewer manual checks and disputes.
The Condition
What is Obstructive Sleep Apnea?
OSA is a breathing disorder in which the airway repeatedly collapses during sleep. As the soft palate and surrounding tissue block airflow, breathing stops and starts through the night—fragmenting sleep and starving the body of oxygen.
Today's Standard of Care
Managing OSA with a CPAP machine
Most patients rely on a CPAP machine that pushes pressurized air into the throat to keep the airway open. It offers two core controls — a fixed air pressure and humidity control — but the same prescription is delivered every night, to every patient.
A Day in the Life
Where does the strain actually happen?
Mapping a full day and night surfaced the friction hiding in plain sight — across waking, working, eating and trying to sleep. Hover each phase to see how Anne feels and where it breaks down.
“I used to sleep sitting straight up for more than five years, thinking it was just because of my weight.”
The Problem
Doing everything right — and still sleeping poorly
A generic, reactive system can't adapt to User. Poor sleep feeds poor health, which feeds more poor sleep — a self-reinforcing loop that CPAP alone never breaks. The system reacts to problems after they happen, instead of anticipating them.
The Solution
Nyx — a personalized care ecosystem with a Digital Twin
Nyx pairs Anne with a continuously-learning Digital Twin and an on-device Nyx Agent. Together they shift her care from reactive to proactive — anticipating difficult nights before they happen and personalizing her CPAP in real time.
System Architecture
How the pieces fit together
A wearable streams live signals to the Digital Twin, which forecasts risk and coordinates with the Nyx Agent, the cloud service, and Anne's phone — closing the loop between sensing, prediction, and action.
A Day with Nyx
Guiding Anne through an exhausting day
From the first sign of strain to a restful morning, Nyx works quietly in the background — sensing, predicting, and acting on Anne's behalf.
01 · Daytime
An exhausting day takes its toll on Anne.
02 · Sensing
Her wearable streams live SpO₂ and exertion data to the Digital Twin.
03 · Prediction
The Digital Twin forecasts a high-risk night from her full day and historical patterns.
04 · Wind-down
The Nyx Agent nudges Anne toward sleep readiness and helps her wind down for the night.
05 · During Sleep
As she sleeps, the CPAP is proactively monitored and auto-adjusted by the Digital Twin.
06 · Next Morning
Anne wakes feeling restful — and reviews the night in conversation with her Nyx Agent.
The Outcome
From reactive to proactive — a calmer, more personal kind of care.
By pairing a living Digital Twin with an attentive agent, Nyx breaks the poor-sleep / poor-health loop — turning a generic, one-size-fits-all device into care that adapts to Anne, night after night.
System design case study · Created by Vidushi Bissa · 2026