I had to rearrange the whelping arrangements because Zoie's bed was just not conducive to moving around puppies - they kept sliding into the ledge around the bed. So I tried the box with the blankets and papers and Zoie hated it. She's used to sleeping in a comfortable human bed with lots of room - the box was definitely too crowded for Zoie and five nursing babies and of course my bed is not the place for puppies, a least until they are much older . Off to Pet Smart, I found the perfect solution, at least until puppies get bigger and more active and then it's find a baby plastic swimming pool. The bed I found is therapeutic and with the heating pad beneath, we have some very contented Yorkies. Having new puppies is like having a new baby, really. I needn't worry about Zoie because she is perfectly relaxed, tending the babies and doing everything that comes naturally.