To enjoy the discounts in the hotels, you just need a train ticket the validity of which coincides with the date of the hotel reservation meaning the day before of after the journey.
CP Services: Alfa Pendular | Intercidades | Regional and InterRegional | Lusitânia Comboio Hotel (Lisbon/Madrid) | Sud Expresso | Celta (Oporto/Vigo)
You can choose to stay at one of the group's hotels in Portugal, with accommodation in three to five star hotels, with 15% off the best rate of the day (cannot be used in conjunction with any other discount or special offer). Breakfast included.
Contacts for booking (subject to availability)
Telephone: 800 834 038 (free call, in Portuguese)
Working days from 9:30 to 18:30.
Say you are booking under the CP partnership.