What it actually is
It's called Hush. It's a simple black wristband — no app, no Bluetooth, nothing to set up beyond charging it and picking a wake time. You strap it on before bed, and instead of playing a sound, it vibrates directly on your wrist until you actually wake up and turn it off.
No fumbling for your phone in the dark. No nine-minute snooze loop. No sleeping through the sound because you were too tired to hear it in the first place.