It's pitch dark and that whine is circling your ear. Tap to slap where you tap, hold for the lamp. Your arm and your cheeks count too, and they sting. Survive to the 06:00 alarm.
🎧Best with headphones: the buzz is in stereo.
🌈No sound? The glowing ring at the screen edge points to every buzz.
💡The lamp shows them for 1.5 s, then they hide. It costs sleep.
No sound on iPhone? Flip the silent switch, or play by the ring.