The brief

Analyst view

• Launched a $349 headband in June 2024; in a trial 76% of users fell asleep faster, by 48% on average among them.
• Raised $12M; 13 staff at launch; research collaborations with eight universities.
• Unlike EEG headbands that only track, it acts on the brain in real time (closed-loop stimulation).

Technical approach

As reported

Phase-locking

Sound timed to each brainwave

The device estimates where each brain oscillation is in its cycle and times sound bursts to land at a chosen point, to weaken or boost it.

Bone conduction

Sound without earbuds

A bone-conduction driver in the band plays the pink-noise bursts through the skull, comfortable to wear lying down.