We sleep in beds that are warm and soft. Where and how do animals sleep? 动物睡觉的姿势真是千奇百怪！When it is time to sleep, I will go and find a tree. 靠树站着睡得最香！It's cool and safe sleeping against a tree. Sometimes I lean on another elephant to sleep. 我最怕小虫子钻进我的鼻孔...