He was inside his crate like every night. He is in the kitchen/dining area by the sliding door/air vent. Never had snakes inside tho. I asked my in laws about that possibility, the only snake that has ever been in their house was when my BIL bought one home with a tank from his friend before they forced him to give it back
But we do have hobo spiders/black widows/other various poisonous spiders here. I checked his face, didn't find any obvious puncture wounds, vet didn't see anything either. They thought it might have been a spider that bit him when he ate it... Which he would do.