We recommend booking a hotel during your stay in Lausanne – hotel stays in Lausanne that do not exceed 15 days include a transportation card that will facilitate transport during your stay.
The card is also provided for stays in youth hostels, bed&breakfasts, and campsites; more details can be found on the Lausanne Tourism website.
Hotel des Voyageurs

https://voyageurs.ch/
35-room, 3-star hotel. Day 1 venue is ~18 minutes away by metro.
Carlton

https://www.alvotel.com/hotel-carlton-lausanne
47-room, 4-star hotel. Day 1 venue is ~25 minutes away by metro.
Agora Swiss Night by Fassbind

https://byfassbind.com/fr/hotel/agora-swiss-night-by-fassbind/
147-room, 4-star hotel. Day 1 venue is ~25 minutes away by metro.
Swiss Wine by Fassbind

https://byfassbind.com/fr/hotel/swiss-wine-by-fassbind/
63-room, 3-star hotel. Day 1 venue is ~25 minutes away by metro.
Swiss Chocolate by Fassbind

https://byfassbind.com/fr/hotel/swiss-wine-by-fassbind/
63-room, 3-star hotel. Day 1 venue is ~25 minutes away by metro.