"A bright, 11,000-square-foot urban retreat on the hotel’s 7th floor, this contemporary spa channels French élan with crisp white tones, fresh flowers, and warmly hued accents. Rooted in a plant-based philosophy, treatments use Sisley’s botanical oils, creams and cleansers—highlights include the 90-minute Supreme Anti-Aging Facial featuring a 20-minute face massage and the cult-favorite Supremÿa product, soothing phyto-aromatic facials, and restorative bodywork such as 60- and 90-minute massages that can include deep-tissue techniques, hot stones, and lavender aromatherapy. The experience is polished from start to finish: well-stocked locker rooms with full-size Sisley toiletries, impossibly soft robes and slippers, a cozy waiting room serving fresh lemonade, teas, petit fours and macarons, and nine generously sized treatment suites with top-tier beds and plush blankets. Post-treatment relaxation is a standout, with a co-ed lounge of lounger beds, blankets and an outdoor terrace for lingering; other on-site amenities include sauna and steam rooms, two salt chambers and Moroccan hammams (the 90-minute Moroccan Hammam Experience is $500). Typical price points noted include many 60-minute facials and body treatments around $235, with add-ons such as cupping for $60, making it a full-service, pampering option that feels like a mini-vacation amid the city."