At a read time of approximately 4 to 5 minutes (depending really on how long you spend at the back of the book, which provides really rather excellent exercises in memory that are cleverly disguised as games to play with the animal pictures and sounds), it would make a great bed-time read if it were not quite so stimulating. The sounds produce slightly more brain activity than the parent of a sleepy pre-schooler would prefer. But that's really the only downside I can think of and the only reason I have deducted half a star, because at almost every other hour of the day (I preclude 5am from that statement) it's splendid fun and not long enough to become boring.
For further reading, maybe a book with an accompanying CD would be fun, in which case please take a look at [[The Noisiest Night by Thomas Taylor]] or perhaps the joyfully interactive, but thankfully silent [[Bedtime (Slip-Andand-Slide Books) by Maureen Roffey]] which actually ''is'' a bedtime read but incorporates gentle interaction with your little one, without making him or her laugh riotously at the monkey button!
Lastly, we at Bookbag would like to extend our thanks to the kind people at Macmillan Children's Books for sending us this copy to review.