You can always attach one of those anti-slip mats to the back of the "quilt". I just buy the non-skid mats they sell in the kitchen aisle for my GPS & they work great. Super cheap, too. I think it would be do-able to tack it on by hand in a few places & then just quilt right through it with a #90 Jeans needle. Would make a nice safe snoozing pad for your puppies.
