Blast off to bedtime with this robotic twist on the popular nursery rhyme, "Twinkle, Twinkle, Little Star!" Because even robots need to power down and recharge! Twinkle, twinkle, robot beep, Out of bed, no time to sleep! Twinkle, Twinkle, Robot Beep is the fourth board book in a series that is perfect for parents and little ones to snuggle up with and share.