Want to conserve heat at night but avoid waking up to a cold house in the morning? Get the best of both worlds by installing a clock thermostat.  Clock thermostats have a set-back feature that can automatically lower your heat at night while you're asleep, and then raise it again in the morning. These smart clock thermostats conserve heat, save you money, and still give you warmth and comfort when you need it.
Clock setback thermostats also work well in the summer and can be used to manage air conditioning systems. By raising the temperature in the home during the day when no one is home and then bring it back down in the evening, you can cut cooling costs as well.