Quick‑Look Verdict The Somnee Smart Sleep Headband and companion app offer an intriguing, science‑backed route for chronic toss‑and‑turners, yet the price tag and subscription tie‑in mean it suits data‑loving bio‑hackers more than casual night owls. What Is the Somnee Smart… Somnee Smart Sleep Headband Review: Can 15 Minutes Really Reboot Your Sleep?