Hey, I'm not sure if this has been asked yet or not, but with objects like Yin-yang and the Cherries, if one of them was feeling tired and the other wasn't, would they fall asleep independently of the other? You can talk with the other crew members if you need to.

Cherries is technically a single mind, so he’s all of at once. 

If I were to guess, one half on Yin-Yang could shut down if incredibly tired, but I’m sure neither would enjoy their body in motion when they do-so. I’m sure they put aside their differences and coordinate sleep-scheduling so that no side can do what the other would consider damage while they’re out. All about that good good balance.