I noticed a hole in one of my socks the other day so i decided instead of throwing it out, i'd give it to Willow. I washed it and barely got it in her cage before she was going wild. She would grab one end in her teeth and then jump all over it. Then she'd pull it into her igloo and then push it out again. She did this off and on all day today. Now I just looked over and she has it half pulled into her igloo and she is sound asleep on it. What a cutie! Just thought i'd share that.