The Nest Learning Thermostat automatically adapts as your life and the seasons change. Just use it for a week and it programs itself. Nest shows you how much energy you use every day in Energy History and every month in your Home Report. So you can see when you use more energy, like on weekends or Monday nights, and how to use less. Change the temperature to save energy and you’ll be rewarded with a Leaf. The Leaf learns how to help you save, so it appears at different temperatures for different families.