Little Houdini

We recently bought Holly a sleeping bag in the next size up, which is supposed to be kid proof in terms of them getting out of it.  The zip is up the size with some tight press studs just under her left arm, and then there are press studs on the shoulders too.  So I was a little surprised when I came into her room after her sleep one day to fine her just in her shirt and nappy, gleefully jumping on the sleeping bag!