There is a reason the finest sleep programmes are not found in cities. Place is not a backdrop to rest but an active ingredient - the altitude, the light, the quality of silence all act upon the nervous system before a single treatment begins.
The clinics that understand this treat geography as pharmacology. A forest at dawn, thin mountain air, the mirror-stillness of an alpine lake: each is prescribed as deliberately as any therapy.
To choose where to rest, then, is already to begin resting well.