It's the trickle in effect. One by one a new occupant comes to join us in bed. I often find that I am hanging off the edge of the bed trying not to fall off before the sun has risen.
Waking up is usually like this:
Loafie talking and giggling. Brick being awoken. Stretching. Hugging. Kissing. (The posing was just for the camera... I didn't even ask)