Strange Bedfellows

Thanks to some large-scale home improvements, all three of my beloved offspring have been sleeping in my room for some time now. Most nights Beloved Offspring #3 snoozes in his crib beside my bed, leaving me to battle #1 and #2 for a bit of pillow and a speck of sheet. But many nights #3 joins the party, and we shuffle and resettle frequently. I remember seeing all three umbilical cords being cut at the time of each delivery, but for some reason it is not enough for them to be sleeping with me - they have to be sleeping ON me. The Chinese got it wrong - surely this is the Year of the Possum.