"Only a bedbug knows what goes on while you doze." That's the motto of the three bedbugs who live in Irene's four-poster bed. One night, when the moon is particularly bright, Irene meets this helpful trio, who tell her about her nighttime visitors--the Sandman, the Tooth Fairy, the Nice Dream Man, Night Mare, and the Boogeyman--and how the bedbugs protect her from the mayhem, mischief, and mishaps that can happen while she sleeps.