In short... this is a story about how "getting a good night's sleep is the most important thing for growing your body." ★ Biological Clock ★ Body temperature regulation for a good night's sleep ★ The cooperative play of nutrients and hormones Growth hormone and thyroid hormone ★ "REM sleep" for brain growth and emotional development ★ "Non-REM sleep" for body growth ★ Breakfast and a good morning poop ※ Title: Good Night's Sleep ※ Editor: Pastel Shobo ※ Illustrations by: Toshio Oda ※ Publisher: Pastel Shobo ※ Price: 1600 yen + tax The "Wood Carving Boy" used for the spread is not included. Thank you for viewing.