Welcome to Part 8 of my Baby Temperament and Sleep Series. If you are just joining us, you may want to start with Part 1, where I define baby temperament. This article will discuss energy as a baby temperament trait. At the end of the series, I will give you a quiz to determine your child's temperament. Baby Temperament - Energy Your child's energy level is how much she sits quietly versus running or moving around. Some kids are always on the move. But, just because your toddler might not