Is it normal that i download movies so i can watch them without using the internet?

I download six or seven movies at a time on Netflix. I do this so that I can be able to watch them offline. I'm on vacation in the Dominican Republic, so this has been a real life saver. Since I don't have internet connection everywhere like I would in the United States, I can only use it in a house that has a router plugged in. The problem is that I'm staying at my sister's grandmother's house. She has the habit of disconnecting the router every night at around midnight (12:00am). Most of the time, I'm not sleepy. Before I came up with the idea of downloading movies on Netflix to watch online, I basically had to force myself to sleep. But now that I have movies to watch offline, I can watch them until I get sleepy. I think the absence of having something entertaining to engage in would make me go haywire.