Playing outside has many benefits for toddlers and it's ideal if they can get outdoors every day. Sun exposure helps keep toddlers' body clocks in balance, improving their nighttime sleep. Getting outside also helps toddlers meet their daily requirement of at least three hours of physical activity. Meeting this minimum improves behavior, learning, and sleep. On occasions when you cannot go outside, open curtains to expose your toddler to natural light and find creative ways to keep them physically active.