I spent 53 hours in a 50-square-foot Amtrak bedroom with a full bathroom. I'd gladly pay $2,200 for it again.

Business Insider's reporter spent 53 hours on Amtrak's California Zephyr train in a bedroom accommodation. Joey Hadden/Business Insider

I wasn't about to sacrifice comfort to save a few bucks. Not when booking the longest train ride in the US.

Most people use trains to get from one place to another. But in February, Amtrak's California Zephyr was my destination. I wanted to thoroughly enjoy the 53-hour journey from snowy Chicago to sunny Emeryville, California.

That's why I spent $2,200 on a bedroom accommodation, a private cabin with a full bathroom.

While I was excited to stay in the tiny, moving hotel room, I wondered whether I'd regret spending so much. In the end, I was sure I had made the right choice for such a long journey.

Here's a look inside the 50-square-foot bedroom.

My bedroom was on the second level of an Amtrak Superliner train.

A sleeping car on the California Zephyr.…