At the risk of looking a bit obsessed, here is another post about Cocoa.

First off check out the resemblance of the two creatures. One is our nine month old puppy. The same puppy that passed obedience school and will sit on command. The other a lioness that resides at the local zoo. Both look calm and peaceful while sleeping. Both look like they would not hurt a fly. Both are very different when awake. Let me set the scene...
James and I drive up to our house after a long day at work. We both are tired and happy to be getting home to relax. I walk in the house first and look out the back door, expecting the daily routine of Cocoa standing there excitedly waiting for me to let her in. But Cocoa is nowhere to be seen, and then I spot something out of place. Snow? No wait we moved to California, it can't be snow!
I open the back door and notice Cocoa frolicking amidst what I now recognize as the remains of the pillow that used to reside in her pen. Our darling puppy apparently got bored while we were at work and turned her pillow into a chew toy. When the pillow started emptying itself onto the lawn, the considerate Cocoa decided to share the love and drag it from corner to corner of the yard. Who knew that inside one pillow could exist so much fluff? Cocoa was incredibly proud of herself and obviously had fun. We had fluff almost everywhere and are still finding it.
People say that dogs grow out of this in a couple years. Although she sometimes destroys things, we are enjoying it, and besides it could be worse!