I have a quick question. I'm taking in a 5 week old kitten (yea!), and I was wondering where she should sleep? She very tiny, and my bed is very high, so I don't want her to fall off in the night. Also, I don't think she'd make it onto the bed. Is it okay to leave her in some sort of box, with an open top, during the night? I just don't want her to get into anything or hurt herself while I'm sleeping, at least for the first little while.