Something under the bed

I've noticed that when Jude gets hyperactive and needy he makes this strange chirping noise. It's sort of like a plaintive yelp. Tonight he was going crazy because he wanted to go underneath the bed but couldn't. I checked to see if one of his toys rolled underneath but it hadn't. Sometimes he just gets this idea in his head and becomes, well... pugnacious. I've posted a clip so you can see what I mean. At the end of the clip he coughs up some shag carpet. You'll see what I mean.