A group of dancers performs an immersive choreography at the Simmons Gallery Seongsu in eastern Seoul on Thursday. Mattress maker Simmons is showcasing a special experience that blends media art, contemporary dance, music and dining to coincide with Frieze Seoul 2026 from Thursday to Saturday. The company said the experience reinterprets the aura of Beautyrest Black — Simmons' premium mattress line — as a multisensory journey centered on the idea that deep, comfortable sleep can become a source of creative