From an article about easily accomplished energy-saving around the house. An illustration depicts a guy turning the thermostat from 70° to 69°. What is wrong with people? Quite aside from the entire subject of environmentalism, these are ridiculous cold weather thermostat settings. In summertime, people equally ridiculously put the air conditioning at 69 or 70° and wear short sleeves and sandals and even shorts. So why are you cranking the heat up that high when you're wearing a sweater? Something terrible has gone wrong with your brain.
What is the right nighttime setting for cold weather? It's 62° (or lower), and that's not even taking the environment or the cost of heating into account. Purely as a matter of comfort and health, you should go low for sleeping. Use a warm comfortor and you won't feel cold. You will feel much better in the morning from breathing cool air during the night. I used to get sinusitis every winter and end up going to the doctor for antibiotics, but after I moved to a big house, I started turning down the heat -- to save money -- and ever since, I've never had this problem. In fact, I've had one cold in over ten years.
I also dislike the sound and feeling of heated air blowing into the room at night. Because of this, I turn the the heat up to 68° in the evening to warm things up, then put it way down -- maybe as low as 55° -- to make it unlikely, most nights, that the furnace will come on at all. This is perfect for a very sound night's sleep. Gradually, it gets cooler and cooler, and if it wakes you up, it's a natural alarm clock. You'll get up and feel great. And when you do, maybe you'll remember I gave you this tip, and you'll have extra time in the morning to stop by the blog and see what new pearls of wisdom have appeared.