The Trinity Spa is celebrated across Seoul for its fanatical devotion to ergonomic comfort and sleep science. This beautiful Hannam flagship features their signature 'Comfort Zone' design—equipped with custom multi-layered European memory foam beds and imported anti-allergen down linens that make you feel weightless the moment you lie down. Their treatments focus on meticulous, fluid strokes that blend aesthetic body-shaping techniques with intense nervous-system calming, making it an absolute heaven for travelers looking to banish jetlag.