During your guided TMB, you can expect a range of accommodations. In larger towns like Chamonix, Les Contamines, Courmayeur, Champex, and Argentière, minimum 3-star hotels are chosen, providing twin-shared rooms with en-suite facilities. In smaller hamlets like Les Chapieux, La Fouly, and Trient/Forclaz, where simpler accommodations prevail, the best available lodging options—mostly auberges—will be selected, although en-suite facilities may be limited.
If you opt for a single supplement, please note that this excludes Les Chapieux and Bonatti, where there are no single rooms. Single rooms may also not be available in Trient/Forclaz — it depends at which point you booked.