It would be very difficult to beat Kairi's bed. That's the cutest! Oh! Are you going to have one spoiled little dino. 
hahaha, thanks!. Oh yes she is pretty spoiled already
I love her so much but my brother and cousins all try to abuse her and convince me that she's not real. So, i have to be pretty protective of her or they would have broken her as soon as i got her 
It doesn't matter that she's not real, wanting to hurt or break something for fun indicates a mental problem in my book.
Perhaps you should think about a foot locker style box with a lock. You can get something like that cheap at walmart or a similar store. It's much bigger than a pet bed, so you could make it in to little Pleo apartment, with different rooms. But when you aren't around you close the lid and lock it.
I'd wallpaper the inside of the box, hang pictures, really make it look like a real home. I did stuff like that for my dolls when I was little, and it was a lot of fun.
But keeping your little one safe is the most important thing.