DozeCraft - The Most Comprehensive Sleep App. No Wearable Required. | Flutter + NestJS

DozeCraft - The Most Comprehensive Sleep App. No Wearable Required. | Flutter + NestJS

A complete, production-ready AI sleep optimization platform built with Flutter and NestJS. Combines clinical CBT-i coaching, audio-based sleep stage detection, adaptive soundscapes, smart home automation, couples mode, and gamification — 24 feature modules, 38 database tables, 11 languages.

🚀 Key Features

🌙 Core Sleep Tracking

• Audio-based sleep stage detection (Light, Deep, REM) — no wearable needed

• Sleep score (0–100) with visual ring display

• Snore detection and anti-snore vibration alerts

• Morning sleep report with detailed metrics

• Session history with detail views and sleep debt tracking

🤖 AI Sleep Coach (CBT-i)

• Clinical-grade Cognitive Behavioral Therapy for Insomnia powered by GPT-4

• Conversational chat — "Can't Sleep", "Sleep Tips", "Analyze My Sleep", "CBT-i Program"

• Daily check-in for habit tracking

• Context-aware conversations (general, CBT-i, dream, coaching)

• Dream journal with AI interpretation and pattern recognition

🎵 Audio & Soundscapes

• AI-adaptive soundscapes — binaural/monaural beats that morph by sleep stage

• Custom sound mixer with per-layer volume control

• Guided sleep stories, breathing exercises (4-7-8, Box), meditation sessions

• Sleep timer with gradual fade-out · Background audio playback

⏰ Smart Alarm

• Wake during lightest sleep phase for natural mornings

• Configurable alarm window (5–60 minutes)

• Wake-up challenges — Math, Pattern, Shake, QR code

📊 Analytics & Insights

• Weekly/monthly sleep trends, stage breakdowns, quality distribution

• Lifestyle correlation analysis — caffeine, meals, exercise vs. sleep quality

• Circadian rhythm energy predictions · Sleep debt trend tracking

• Shareable stats cards for social media

🏠 Smart Home Automation

• Orchestrate lights, thermostat, blinds, speakers, fans, humidifiers

• Bedtime and wake-up automation rules · Device status monitoring

🔬 Advanced Personalization

• Chronotype Profiling — Bear/Lion/Wolf/Dolphin drives all recommendations

• Jet Lag Planner — recovery plan with light exposure schedules

• Shift Worker Optimizer — rotating schedule support

• Power Nap Manager — optimal nap timing

• Menstrual Cycle Correlation — sleep tracking through cycle phases

👫 Social & Gamification

• Couples sleep mode — dual-person tracking with shared soundscapes

• Family Sleep Hub with kids mode and parental controls

• Sleep streaks, 6+ achievement categories, XP & level progression

• Sleep challenges with leaderboards

⚙️ More Features

• Lifestyle Tracking — caffeine log, meal log, sleep environment monitoring

• Health Integration — Apple Health + Google Health Connect

• 11 Languages — EN, ES, FR, DE, PT, JA, KO, ZH, AR, HI, RU

• Auth — Email/OTP, Google Sign-In, Apple Sign-In · JWT auto-refresh

• Push Notifications — Firebase FCM · Data export & GDPR compliant

🛠️ Tech Stack

📱 Mobile (Flutter)

• Flutter 3.x / Dart 3.2+ — iOS & Android · 24 feature modules

• Riverpod 2.5 · GoRouter 14.2 · Dio 5.4 with interceptors

• Audio: just_audio, audio_service, record · Charts: fl_chart

• Animations: Lottie & Rive · Health: Apple Health & Google Fit

• Payments: in_app_purchase (Apple StoreKit + Google Play Billing)

• i18n: 11 language ARB files

⚙️ Backend (NestJS)

• NestJS 11 (TypeScript) — 24 modules, 38-table PostgreSQL schema

• Redis · BullMQ · JWT + Passport.js

• AI: OpenRouter (GPT-4) · Storage: Cloudflare R2 / AWS S3 · Email: AWS SES

• Stripe web fallback · Swagger/OpenAPI docs

💳 Subscription Plans

• Free — basic tracking, sleep score, limited soundscapes

• Premium Monthly — $9.99/mo — full sleep stage detection, AI coach, all features

• Premium Yearly — $49.99/yr — same as monthly, save 58%

• Early bird: $7.99/mo · $39.99/yr · Apple StoreKit + Google Play Billing

📦 What's Included

• 📱 Full Flutter source code — iOS & Android (24 modules)

• ⚙️ NestJS backend — 24 modules, 38-table schema, SQL migrations

• 📋 Environment config templates

• 📖 Swagger API documentation

• 🌍 11 language ARB localization files

✅ Requirements

• Flutter 3.x · Android Studio / Xcode

• Node.js · PostgreSQL 15+ · Redis

• OpenRouter API key (GPT-4) · Firebase project · AWS / Cloudflare R2

🌙 Audio-based tracking. CBT-i coach. Smart home. No wearable.  |  📊 24 modules · 38 tables · 11 languages