Breakdown of Noću često kašljem, pa ne mogu dobro spavati.
Questions & Answers about Noću često kašljem, pa ne mogu dobro spavati.
Noću means at night / during the night.
- noć = night (the noun)
- noću = an adverbial form meaning at night
So in this sentence, Noću često kašljem means I often cough at night.
A learner may expect a preposition, like u noći, but Croatian often uses noću by itself for this idea.
Croatian often leaves out subject pronouns when they are clear from the verb ending.
Here, kašljem means I cough and mogu means I can, so the subject ja is understood automatically.
You could say Ja noću često kašljem, but it is usually unnecessary unless you want emphasis.