Sleep Over Bags Sleep Over Bags for dogs and cats are reversible sleeping bags that open flat and double as a training blanket or car seat protector.  They are machine washable and have ventilation holes to improve circulation throughout the bag.  Each comes with toys attached - two bone chew toys (dog) or mice rattle toys (cats) to entice play.  Durable snaps hold the bag open for easy access and elastic straps provide for easy storage or travel.