CBT-I Sleep Restriction Titration Simulator (2D)

Prescription digital therapeutics for chronic insomnia deliver cognitive behavioral therapy — including sleep-restriction titration — through software rather than a clinic visit, and this simulator models the exact closed loop that drives one: a two-process homeostatic sleep-pressure model determines how long a virtual patient takes to fall asleep and how much of a restricted time-in-bed window becomes real sleep, and after every simulated week the app's own titration algorithm reads the average sleep efficiency and widens, narrows, or holds the prescribed window, exactly as an FDA-cleared CBT-I app does from real sleep-diary data. This 2D edition renders the same night-by-night history as a pannable, zoomable bar-chart timeline instead of a 3D helix.