Perhaps he had been tired. He slept for a fair amount of time, not waking up till the next day as the sun rose.
Leo slowly opened his eyes to stare up at an unfamiliar ceiling. He took a deep breath in and a familiar scent entered letting him know he had no need to worry.
He wondered if he had fallen asleep as he got out of the bed which smelled just like Celeste. He made a guess that it was her bed before making his way through the entrance to the room then went around the house in search of her. His bare feet lightly padding against the ground as he slightly ran around the house.
Once he found her he went over and stared at her quietly. Not greeting or making himself known like most would.