Inside Hästens and The Sleep Spa In a city that understands luxury, true indulgence often reveals itself in quieter, more personal ways. At The Sleep Spa, the pursuit of rest is treated with the same reverence usually reserved for couture, fine watches, or bespoke automobiles. At the center of this philosophy is Hästens , a brand that has spent more than 170 years perfecting the art of sleep. This is the closest thing to sleeping on a cloud. I went to the Sleep Spa in West Ho