Why Do We Yawn?: A Hey Sadie! Picture Book

By David Shaffer

Sadie's mouth keeps opening all by itself. Why? With her friend Nutkin, she finds out what a yawn does for a busy brain, why yawns are catching, and why you yawn when you are sleepy and when you wake up. Even fish yawn.

From the YouTube series Hey Sadie , where a curious dog asks one question each episode and finds the answer. For readers ages 3 to 7, and the grown-ups who read with them.

• Format: Paperback
• Language: English
• ISBN: B0HN4R8QZV
• ISBN13: 9798161995143
• Release Date: October 2026
• Publisher: Independently published
• Length: 24 Pages
• Weight: 0.19 lbs.
• Dimensions: 8.5" x 0.1" x 8.5"