So we have TOTALLY SOLVED the vacuum mystery. But we're not going to TELL YOU THE ANSWER, not quite yet, because a friend said she wanted to watch the video first.
Update: Le Answer!
So the question is: what sort of vaccuum both "bonks" and "sleeps"?
the answer is: A Roomba!
One of which is owned by elliot's friend Robbie, and which he saw in action a few days ago and has, evidently, really been wanting to tell us about. Baccuum! Bonk! shhhh!
Of course, a roomba doesn't actually sleep, but it does sometimes stop doing it's awesome bonking, and at this point one might explain, to a whinging toddler, that the lack of activity was due to "sleeping" which also required leaving the roomba alone. to sleep.
anyway, that video is not elliot, it's just something I found on youtube, but i think it captures his relationship to the roomba quite well. when elliot saw it, he shrieked, said "Baccum! Baccum!!!!" and then tried to kiss the laptop screen.