1
general::
Also, make a night of it. Devote a day (or night) to some pleasurable pursuit, as in Now that we're at the beach, let's make a day of it, or Since they missed the seven o'clock train, they decided to make a night of it. [Mid-1600s]
American Heritage Idioms
2
general::
Phrase(s): make a day of it
Go to make a day of doing something and make a day of it
McGrawhill's American Idioms And Phrasal Verbs