So, the save mechanics are wonky in this game, which makes it hard to put down suddenly. The only way to save your progress is to return home and go to sleep, which you have to do by 2am each night in game time.
Basically you play a "day" at a time. A game day takes 17 minutes. You can go to sleep early, but it's basically taking a penalty as time is your most valuable resource.
If you can just suspend without turning the software off, I guess it would be a different story. I share my Switch with my kid, so I can't do that most of the time.