What happens when you fall asleep? Why do we need sleep? And what are dreams? Curious little children can lift over 30 flaps to find the answers to these questions and many more in this delightful introduction to sleep, with simple explanations and gorgeous illustrations on every page.

当你睡着的时候会发生什么呢？我们为什么需要睡眠？为什么我们会做梦？好奇的孩子们可以打开30多个折叠翻页来寻找这些问题的答案，在这本有趣的睡眠介绍中，每一页有趣的画面都非常吸引孩子。。