Phonk grew out of 1990s Memphis hip-hop and returned in the late 2010s as drift phonk, a harder, cowbell-driven style that took over car and gym edits on TikTok. Creators then began slowing these tracks down, and the dreamy result became known as sleep phonk, the soundtrack of goku drip edits and other drowsy late-night meme edits. It spread through POV memes about dozing off, and it endures because the slowed bassline makes any sleepy scenario funnier.