We kennel Chelsea when we are away from home, such as at work. She is kenneled, usually, at night. I put a towel or rug in her kennel and then we cover her kennel completely in towels to shut out any light or distractions. She is very protective of her space. If she hears me changing the towels or rug, she comes running.
I spy short pants!
As of late, her favorite hiding place, outside of the kennel is under my dresser. I even fixed it so that she couldn't get under it and basically, she dug through the shoes that I keep lined up across the front and got under, anyway.
At least we know where to look when she is missing.