Sleeping at the lab

I'm currently an undergrad, and work as a researcher in an EECS lab. Recently, I discovered a novel application to work on, and so for the last few weeks I've been staying at the lab late almost every day, leaving at midnight or later. Since I live in a dorm on the opposite end of campus, I usually don't get to sleep until around 2-3 AM. In the morning I need to be up and in class by 8-9 AM (depending on the day), in a building that happens to be right next to the lab.

Would it be acceptable to set up a foldable cot at night (leave it under my desk during the day) and sleep at the lab occasionally? I'm usually the last person at the lab at night. If it cultural context matters, I work at a research university in California (US).