Big HealthDigital CBT-I programEvidence-based assessment
Sleepio review
Updated 2026-05-16
7.3
/ 10
The most clinically serious app here — a validated CBT-I course that treats insomnia, not a tracker or a sound library; the strongest pick if you have a real sleep problem.
Best for anyone with genuine insomnia who wants treatment, not tracking.
Sleepio is not a tracker or a soundscape app — it is a digital course of cognitive behavioural therapy for insomnia (CBT-I), the first-line clinical treatment. It is delivered over weekly sessions, is backed by published trials, and is the one app here built to actually treat a sleep disorder.
How we tested: Evidence-based assessment — from public information, published trials and independent 2026 reviews. Not based on a long hands-on trial by ONDA.
A sleep diary rather than sensor tracking — the data that drives the CBT-I program.
Wind-down content
5.0
Some relaxation tools, but content is not the point — the therapy course is.
Sleep science
9.5
A genuine CBT-I program — the first-line clinical treatment for insomnia — with published trial evidence.
Insights and guidance
7.5
Progress tracked against the course; diary-driven, focused on the treatment.
App experience
7.0
A structured, week-by-week course — it asks for commitment, not browsing.
Free tier
4.5
No real free tier — but in some regions it is available free through a health service.
Value
7.0
Costly direct, but free via some employers and health systems — and it treats a disorder.
Pros
+A genuine, clinically validated CBT-I program
+Treats insomnia rather than just measuring it
+Strong published trial evidence
+Free in some regions via health services or employers
Cons
−Not a tracker or a sound library
−Asks for real commitment over several weeks
−No meaningful free tier if you pay directly
−Overkill if you sleep fine and just want stats
Price: $400 varies; free in some regions via health services or employers (as of 2026-05-16)
Where it leads
Sleepio is the only app here that sets out to treat a sleep disorder rather than measure or soothe one. It delivers cognitive behavioural therapy for insomnia (CBT-I) — the first-line clinical treatment — as a structured, week-by-week course, driven by a sleep diary. It is backed by published randomised trials, and in some regions it is offered free through a health service or employer. If you have genuine insomnia, this is the clinically serious choice.
Where it falls short
It is not a tracker and not a sound library — if you want nightly stats or soundscapes, it is the wrong app. The course asks for real commitment over several weeks, and paid directly it is expensive. For someone who sleeps fine and just wants data, it is overkill.
Who it is for
Choose Sleepio if you have a real, persistent sleep problem and want evidence-based treatment. If you sleep adequately and want measurement or relaxation, a tracker like Sleep Cycle or a library like BetterSleep is the better fit.