We don't know yet, and we won't pretend to. It is a prototype. Nothing is for sale, and joining the waitlist costs nothing and commits you to nothing. When there is a real price, waitlist members hear it first.

It might not. Sleep-onset cueing is an active area of research, effects vary between people, and some nights nothing lands. We would rather tell you that plainly now than oversell a prototype.

Sessions are stored on your device by default. We do not sell data, and nothing is shared or uploaded unless you explicitly choose to. If we ever offer cloud sync, it will be opt-in and clearly labelled.

A tracker measures your night and reports back in the morning. Eidolon acts during the night — it detects the moment you drift off and plays a short cue in that window. It is about the transition into sleep, not a score for it.

The cue is a quiet audio prompt timed to the drift into sleep, not a shock or a bright light. It is designed to work with the transition rather than interrupt it. There are no implants and nothing invasive — it is a fabric band.

No. The session is captured for you and waiting in the morning, so nothing depends on you waking up and scrambling to write it down before it fades.

We are building the first prototype now, so there is no ship date to promise. The honest answer is: join the waitlist and we will write to you the moment there is something real to try.