Dog nightmares is a funny image of a dog, that shows the true nature of the breed. This dog photo displays the dog's true instincts and his interactions with his surroundings. Dog nightmares short-coated white dog. Play and solve Dog nightmares puzzle with 12, 24, 35, 40, 54, 60, 70, 96, 104 or 260 pieces. This online jigsaw puzzle, is the perfect way to relax.