Theta Waves for Deep Sleep |144 Hz | Low Non-Rhythmic Drone | Soothing GFX Gentle Nerves Gentle Nerves January 6, 2026 · 0 Comment Pure Theta Waves |144 Hz | Low Non-Rhythmic Drone | Soothing GFX. Deep Sleep Music for Falling Asleep. source Pure Delta Wave Sleep Therapy Sleep Rhythms for Insomnia and Deep Rest