What: A neutral-hued oasis with a hammam and a steam room in the lavish digs of the Hotel Matilda.
The look: Nearly as dim and sultry as Aladdin's cave, with rooms redolent of vanilla, lavender, and rosemary, and four decadent treatment rooms with chocolate-velvet armchairs, cream leather stools, and silver bowls of lavender buds.
Who goes: Mexico City's moneyed Gen X, their elegant mothers, and American expats.
The treatment: The spa honors Mexico's indigenous flavors: Energize with a nopal, ginger, and lime exfoliation; focus with a coffee, cocoa, and mint scrub.
P.S.: Treatments end at the scheduled time regardless of when they start.