We get this EVERY...SINGLE......MORNING between half 6 and 7 just before the alarm go's off, our 3 go absolutely crazy playing, wheeking, popcorning, running around, playing it they make so much noise, and they are kept in our bedroom, it's as if they are trying to say "wake up its nearly feed time and if you sleep through that alarm we will have to wait even longer so get up!"
It is cute though, i just wish they would do it in the evening as i am not a morning person and don't take very kindly to being woken up.