my 3 1/2 year old absolutely loves this book. she's had us read it to her every night for the last two weeks, except last night when she read it to herself.i love that the dinasour is the one that is nervous about going somewhere for the night and the little boy reassures him that everything will be alright. when i read the dinasour's words, i say it in a scared/worried/anxious voice so my daughter can see that we all feel this way sometimes. then i read the boy's remarks as light and reassuring, at some bits with humour or laughter in my voice.she has really taken to this book and the illustrations are beautiful. she does actions as i'm reading this book, like pointing to her sparkly white teeth, and she loves reading the note on the refrigerator. i think this empowers her to feel more secure that my husband and myself will always be there to pick her up from nanny's or a friend's house when she's old enough to stay overnight.