Real sleep science — not a generic 1–10 score and a bedtime reminder. Somna instruments the metrics CBT-I clinicians actually use, then quietly applies them to the next night you sleep.
Total Sleep Time, Sleep Efficiency %, Sleep Onset Latency, Wake After Sleep Onset and Early Morning Awakening — captured nightly, charted weekly.
The clinic-grade SRT protocol — auto-titrated. Somna tightens or expands your window each week based on your rolling 7-night SE%.
For recurring nightmares: log the dream, rescript the ending, rehearse it before bed. The protocol with the strongest evidence base.
A 7-night Sleep Onset Latency model predicts your wake window. Somna picks the lightest moment inside it — never later than the alarm you set.
An ActivityKit Live Activity tracks sleep-in-progress on your lock screen — so you can check the time without waking the whole household.
Small, Medium and Large widgets — the Large widget plots your 7-day SE% trend at a glance, no app launch required.