Yesterday Clementine played ALL day long! No naps at all. I kept expecting her to run out of steam, but she didn't. I put her to bed at 9:30 or so amd never heard a peep out of her all night. I got up at 6:30, came down stairs and she hadn't made a mess in the crate at all. I'm sure this won't continue to be the case, every night, so far, so good!!