In Palworld, you can build a Hot Spring in your base as it apparently helps to restore sanity after a long day of work.
If your Pals are worked until their sanity (SAN) is too high, they might leave. A Hot Spring helps in reducing that.
Here’s how you can build a Hot Spring in Palworld.
How to build a Hot Spring
You’ll have to first unlock the Hot Spring blueprint in the technology tab. It’s around level 8 or 9.
Place the Hot Spring where you think it’s suitable and that’s it. Your Pals should be able to rest if they’re going insane.