Sparky works for a lab, as a test subject. He has an implant in his neck to record data and track things. Every time something happens they get the data, then pick him up once he’s alone to be reset back to normal. He’s literally a blank slate, perfect to test how things affect a normal creature, and he’s smart enough to get into these situations, unlike a wild beast. The only thing that doesn’t get reset are his memories, and his age (unless he loses more than 2 months). Noctra was assigned to protect him when he's at home and just wants to relax. If he’s really emotionally restless, and just wants sleep, she ensures it happens