lit double

Question

could you use lit matrimonial instead of lit double?

Accepted Answer

Salut Nigel,
https://www.wordreference.com/fren/matrimonial
The link above explains the term matrimonial. 
The lesson refers to a person using a hotel - no mention of any aspect of matrimony. 
I don't mean to be dismissive, but cannot see how the adjective matrimonial is appropriate in the context of the lesson.
Bonne journée
Jim