In one of those huge fabricated trees that rises up in the middle of the Jungle, though all the floors? The Lied is my favorite part of that zoo, the aquarium tunnel and reef right behind it. It appears he sleeps like many of us do; fetal position with hands tucked under the head.
If you've ever wanted to make a difference but found it hard to believe that one person could... check out the Kiva Team Caedes discussion thread and discover that anything is possible.