Seconded. Make sure you get your room on the opposite side from the road. Don't know why, it's not even a busy road, but it was so loud even at night.

As for sleep tips. I've gotten used to sleeping with earplugs and use them 100% of the time I'm at work. White noise generator app on the phone if you need serious noise cx. Just make sure your alarm clock is loud and jarring. I also use the vibrating alarm on my smart watch.