Eight candidate names were researched. SleepOS is already taken on both iOS and Android (id6761389688 / com.domum.sleepos). SleepShift has an existing hypnosis app (id819540459). SleepCoach has multiple exact matches on iOS. SleepPrivate has no App Store match on iOS or Android and all three primary domains (.com, .app, .io) are available — this is the strongest option. NightOS has no iOS match and nightos.app is available, but the OS naming convention feels developer-facing rather than consumer-friendly.
| Name | iOS App Store | Google Play | Domain | Trademark Risk | Score |
|---|---|---|---|---|---|
| SleepPrivate | ✅ Clear — no exact match | ✅ Clear — no exact match | sleepprivate.com ✅ $11.25/yr sleepprivate.app ✅ $14.99/yr sleepprivate.io ✅ $37.99/yr |
Low — no conflicting brand found | 9/10 |
| NightOS | ✅ Clear — no exact match | ✅ Clear — no exact match | nightos.com ❌ Taken nightos.app ✅ $14.99/yr |
Low-Medium — "NightOps" app exists, OS branding may confuse | 6/10 |
| SleepOS | ❌ Taken — id6761389688 (Australian CBT-I app exact match) | ❌ Taken — com.domum.sleepos on Google Play | sleepos.com ❌ Taken sleepos.app ❌ Taken sleepos.io ❌ Taken |
HIGH — exact concept competitor exists | 1/10 |
| SleepShift | ❌ Taken — SleepShift: Hypnosis id819540459 | ⚠️ No exact match but name is saturated | sleepshift.com ❌ Taken sleepshift.app ❌ Taken |
Medium — hypnosis app with same name | 2/10 |
| SleepCoach | ❌ Taken — multiple exact matches (id6532592852, id1434232931, id1594345404) | ❌ Saturated — many exact matches | Unverified — not checked (name disqualified) | HIGH — heavily saturated name | 1/10 |
| DriftSleep | ⚠️ "Drift Sleep App - White Noise" exists (id1526275260), not exact CBT-I concept | ❌ driftsleep.com Taken | driftsleep.com ❌ Taken driftsleep.app ❌ Taken driftsleep.io ✅ $37.99/yr |
Medium — "Drift" brand overlap in sleep category | 4/10 |
| SleepPilot | ✅ No exact match found on iOS | ✅ No exact match found on Play | sleeppilot.com ❌ Taken sleeppilot.app ✅ $14.99/yr |
Low — no conflicting trademark found | 7/10 |
| CBTISleep | ✅ No exact match on iOS | ✅ No exact match on Play | cbtisleep.com ✅ $11.25/yr cbtisleep.app ✅ $14.99/yr |
Low — descriptive compound, no trademark risk | 6/10 — too clinical, hard to brand |
1. SleepPrivate — Highest clarity name for the privacy differentiator. Domains fully available, zero App Store conflict, memorable and self-explanatory for the target audience. Recommended.
2. SleepPilot — Clean fallback. sleeppilot.app is available. Strong action framing ("pilot your sleep"). No iOS or Android conflict found. Run additional App Store verification before committing.
3. NightOS — Available on App Store and .app domain available, but the "OS" suffix skews developer-audience; less ideal for consumer health positioning.
| Metric | Data Point | Source |
|---|---|---|
| TAM — Digital Insomnia Therapeutics | $3.51B (2025) → $6.51B (2035) | OpenPR / InsightAce Analytic 2025 |
| CBT-I Specific Market | $2.57B (2025) → $4.29B (2032) at 7.6% CAGR | Coherent Market Insights, 2025 |
| Broader Sleep Monitoring Apps | $4.65B (2025) → $5.49B (2026), 18% CAGR through 2035 | Business Research Insights 2025 |
| Insomnia Treatment Market | $3.76B (2025) → $5.07B (2031) at 5.09% CAGR | Research & Markets 2025 |
| Affected US Adults | 50–70 million with chronic sleep disorders | CDC / Sleep Foundation (widely cited) |
| CBT-I Success Rate | 70–80% remission; 76% symptom remission in digital delivery | AASM Clinical Guidelines; multiple RCTs |
| Digital delivery market share | 55.3% of insomnia market in 2025 | InsightAce Analytic 2025 |
Chronic insomnia is a massive, medically validated problem with 50–70 million Americans affected. CBT-I is the gold-standard first-line treatment recommended by the American Academy of Sleep Medicine — outperforming sleep medication in long-term outcomes. The digital CBT-I sub-market sits at $2.57B and is growing at 7.6% CAGR. Crucially, digital/online delivery now commands 55% market share — meaning the shift to mobile-first CBT-I is already underway.
The privacy angle creates an additional wedge: as digital therapeutics face increasing scrutiny over data practices, and as Apple's Foundation Models framework (shipped iOS 26, Sept 2025) enables full 3B-parameter on-device language model inference, the timing to build a zero-cloud CBT-I coach is uniquely favorable.
Target user: 25–55 year old professional with 6+ months of insomnia, tech-savvy, privacy-conscious, willing to pay for a solution that doesn't send their sleep diary to a startup's cloud server. Estimated 8–12M addressable iOS users in the US alone.
$60/mo or $99.99/yr (FSA/HSA eligible). 7-day free trial. No free tier after trial. Clear paywall on core CBT-I protocol. Conversion hook: clinical assessment shows 50% better than sleeping pills — upgrade to access full 8-week program.
YC S23 credibility drives press (TechCrunch, Forbes). App Store featuring, clinical partnerships. Harvard Innovation Lab origin story. Revenue: ~$800K–$1.2M/mo est. (pricing $60/mo × estimated 15–20K active subscribers — Unverified exact figure; based on funding trajectory and pricing).
"App is built for 9-to-5 office workers — sleep schedule doesn't adapt to irregular hours or shift workers. Billing starts before users notice trial ended."
No direct consumer subscription — distributed via employers and health plans at no cost to employees. Cash-pay direct: $449 one-time. US NHS equivalent coverage. Pivoted away from consumer subscription to B2B after clinical validation. Revenue: Unverified (private, B2B model).
30+ published RCTs — largest evidence base in category. NHS (UK), US military, major health insurers as distribution channels. Clinical credibility drives enterprise sales. Consumer acquisition is almost entirely employer-benefit driven.
"Too many technical glitches — sessions freeze and won't advance. Doesn't pull Apple Health data. 1.8/5 on Trustpilot with 72% 1-star reviews despite clinical claims."
Free trial (3–7 days conflicting reports), then auto-renewing subscription. AI-powered 6-week CBT-I program with 40 rules engine. Yoga Nidra and breathing exercises bundled. Pricing not publicly listed — "unlocks premium features." Revenue: ~$30–80K/mo est. (early stage, small user base).
Content marketing via blog (zomni.app/blog). SEO-focused comparisons targeting competitor keywords. Early App Store traction. No known influencer or paid channel identified. All data sent to cloud — no privacy differentiation.
"Trial advertised as 1 year but turns out to be 3 days after onboarding. Misleading trial length."
Completely free — developed by US Department of Veterans Affairs. No IAP, no subscription. 340K+ Android downloads. 100K+ downloads. Sleep diary, sleep restriction scheduling, educational content. Government funding model — no revenue generated directly. Revenue: $0 (free government tool).
Distributed via VA system and PTSD National Center referrals. Appears in every "best CBT-I apps" listicle due to free pricing and clinical pedigree. Last updated Oct 2024 — no AI coaching layer. Designed for use alongside a human therapist, not standalone.
"Outdated UI, no AI adaptation — designed for therapist-assisted use, not self-directed. Difficult for users without a clinician to follow along."
Main app: $14.99/mo or $69.99/yr. New standalone Calm Sleep app launched Sept 2025: $69.99/yr, 7-day trial. Hardware bundle: Calm x Ozlo Sleepbuds includes 1-year subscription. ~50% of Calm users are sleep-focused. Revenue: ~$17.5M/mo ($210M/yr — Business of Apps 2025).
Celebrity Sleep Stories (Matthew McConaughey, Andrew Scott), massive brand awareness. Declining trend — revenue down 24% YoY in 2025, subscribers fell from 4M to 3.5M. New Calm Sleep standalone launched to re-engage sleep segment. Primarily meditation/mindfulness; CBT-I is NOT a core feature.
"Calm is for relaxation, not insomnia treatment. Sleep Stories don't fix chronic insomnia. Expensive subscription for content that doesn't address root causes."
Stellar Sleep, Zomni, Sleepio, and Calm all require cloud upload of sensitive sleep and psychological data. CBT-i Coach is free but static, outdated, and not AI-powered. No competitor has built a full CBT-I protocol that runs 100% on-device. Apple's Foundation Models framework (iOS 26, Sept 2025) makes this technically feasible for the first time. The user who is most desperate to fix insomnia is also the user most reluctant to share intimate sleep and mood data with a startup's server.
The CBT-I / insomnia keyword category is moderately competitive but far less saturated than "meditation" or "sleep sounds." The specific term "CBT-I" has clinical credibility and relatively few exact-match apps targeting it directly. Privacy + insomnia compound keywords are essentially unclaimed territory.
| Field | Text | Chars | Rationale |
|---|---|---|---|
| Title | SleepPrivate: CBT-I Coach | 24 | Brand + primary keyword "CBT-I Coach" — targets the high-intent clinical audience. Under 30-char limit. |
| Subtitle | Insomnia Therapy On-Device | 26 | Secondary keywords "insomnia therapy" + unique "on-device" differentiator that no competitor claims. Under 30-char limit. |
| Primary Category | Health & Fitness | — | Where Stellar Sleep, Zomni, and CBT-i Coach all live. Best discovery category for medical-adjacent apps. |
| Secondary Category | Medical | — | CBT-I has clinical credibility; "Medical" secondary category reaches higher-intent users. |
"CBT-I" is the most underserved high-intent keyword in the sleep category. "Sleep tracker" is saturated (232+ apps), but "CBT-I app" returns only a handful of exact-match results. Compound keywords like "sleep restriction therapy" and "on-device insomnia" are essentially unclaimed — first-mover advantage available for 12–18 months before competitors react. The privacy angle ("on-device") is a novel differentiator that no current app title or subtitle uses.
SleepPrivate is a strong GO. The market is large ($2.57B+ and growing), CBT-I has ironclad clinical validation (70–80% success rates, AASM gold standard), and on-device privacy is a genuine, technically defensible differentiation that no competitor has executed. The competition is real — Stellar Sleep raised $6.5M and has traction — but their Achilles heel is cloud dependency. Apple Foundation Models (available since iOS 26) makes full on-device CBT-I protocol technically feasible for the first time. Subscription pricing is proven in this category with willingness to pay at $39.99–$99.99/yr demonstrated by competitors.
| Dimension | Score | Reasoning |
|---|---|---|
| Market Size | 8/10 | $2.57B CBT-I market, 50–70M affected Americans, 18% CAGR in digital sleep monitoring. Not a niche. |
| Competition Level | 6/10 | Stellar Sleep (YC, $6.5M) and Sleepio (Oxford, massive clinical base) are formidable. However, neither competes on privacy. Space is not monopolized yet. |
| Differentiation | 9/10 | Zero-cloud on-device CBT-I is genuinely unique. No competitor offers this. Apple Foundation Models as the technical backbone is a 1–2 year defensible moat before others can replicate. |
| Monetization Clarity | 8/10 | $4.99/mo or $39.99/yr is below all competitors. Proven willingness to pay at $60/mo (Stellar Sleep). Low price = high conversion. FSA/HSA eligibility is achievable long-term. |
| Technical Feasibility | 7/10 | Apple Foundation Models framework is now public (iOS 26). 3B on-device model is real and usable. CBT-I protocol is well-documented and structured. Main risk: sleep restriction logic requires careful clinical UX and edge case handling. |
| ASO Opportunity | 7/10 | "CBT-I app" and "on-device insomnia" keywords have very few exact-match competitors. Meaningful white space in the most high-intent search terms. |
| Risk / Opportunity | Detail |
|---|---|
| Biggest Risk | Stellar Sleep or Zomni adds an "on-device mode" toggle before launch. Also: Apple itself could ship CBT-I as a native Health feature (they have the Foundation Models and sleep data). |
| Biggest Opportunity | Privacy regulations (HIPAA, state laws) increasingly restrict how health apps store sensitive behavioral data. A zero-cloud CBT-I coach becomes the only legally "safe" option for privacy-aware users and could qualify for App Store Health Research distribution. |
On-Device CBT-I Coach for iOS
Register in App Store Connect before coding
$4.99/mo · $39.99/yr · $99.99 lifetime. 7-day free trial. FSA/HSA eligible messaging in metadata.
Age 28–52, iPhone user, has tried sleep hygiene tips without success, 6+ months of poor sleep, uncomfortable sharing health data with third-party cloud services, willing to pay for a medically-validated solution.
Stellar Sleep charges $60/mo and sends all your sleep diary data to their servers. SleepPrivate delivers the identical clinically validated CBT-I protocol for $39.99/yr — with a hard technical guarantee that your data never leaves your phone.
| # | Feature | Why It Matters | Session |
|---|---|---|---|
| 1 | On-Device Sleep Diary + Sleep Window Calculator | Core CBT-I data collection. Sleep restriction prescription requires accurate diary. Runs 100% on-device via SwiftData — zero cloud write. | S1–S2 |
| 2 | AI CBT-I Coach (Foundation Models) | The key differentiator. On-device LLM delivers personalized sleep restriction recommendations, stimulus control coaching, and cognitive restructuring — without any data leaving the device. | S3–S4 |
| 3 | 6-Week Structured Program | Mirrors clinical CBT-I protocol: Week 1 assessment → Week 2–3 sleep restriction → Week 4–5 stimulus control → Week 6 cognitive restructuring + relapse prevention. Proven structure matches what Sleepio charges $449 for. | S4–S5 |
| 4 | Sleep Efficiency Dashboard | Visual progress that creates "aha moments" — seeing efficiency improve from 55% to 85% is the key retention driver in CBT-I apps. Built with SwiftCharts, data stays local. | S5 |
| 5 | Privacy Proof Badge + Audit Log | Unique marketing asset: a built-in "zero data sent" audit screen that shows users exactly what data stays local. Converts privacy skeptics and creates viral screenshot moments for App Store reviews. | S6 |
Position against Stellar Sleep on price ($39.99/yr vs $60/mo = 18x cheaper), against Sleepio on accessibility (no employer required, instant download), and against CBT-i Coach on intelligence (AI adaptive coaching vs static content). The privacy angle is the moat — and it gets stronger as digital health privacy regulations tighten.