8 HOURS LONG — Distant Diesel Truck Over the Hill | Bedroom Window

Eight hours of distant heavy diesel trucks passing over a hill at night. From a quiet bedroom, hear each truck approach gradually, make two gentle changes in engine tone near the rise and crest, then descend and fade as the next truck begins to approach. The passes overlap softly, with no silent gap between them. No horns, air brakes, sharp clunks, or sudden loud changes. This is an original designed soundscape and digital illustration, not a real recording of a specific truck, road, or location. This is an ambient listening experience, not medical advice or a promise of sleep.