Arlej Tech

+44% deep sleep. +30% REM. Praenox.

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From fusion dynamics to biometric systems — the method is the same. Understand the system deeply enough, and you stop reacting. You start predicting. That's what I build toward.

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Praenox — Biometric Sound SynthesisSleep audio that adapts to your body every night
Jun 2026

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Joined Product HuntJune 28th, 2026

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3d ago

Praenox — Biometric Sound Synthesis - Sleep audio that adapts to your body every night

Your nervous system changes every night. Your sleep audio shouldn't stay the same. Praenox reads 6 biometrics from your wearable — HRV, resting HR, deep sleep %, REM %, stress, sleep hours — and generates a therapeutic soundscape tuned to your exact physiological state. 6 protocols, binaural beats, isochronic pulses, MP3 export. Real results: +26% deep sleep · +21% REM · +111% sleep duration. Free. Windows. Forever.