Very few of years ago, I visited our older sibling on the other side of the country. I spent a month with her, and was totally comfortable in her guest study room. Although her home is not equipped with a central cooling system, there was a window a/c in our room. Despite outdoor hot and cold temperatures in the high eighties, the room was perfectly cool. I had a little remote control which allows myself and others to make adjustments without even getting out of bed. With a tap of our finger, I could raise or lower temperature, regulate fan speed and even target humidity levels. At the end of the a scheduled morning, I was always eager to crawl into bed. I had no trouble sleeping and always felt rested in the morning. This past winter, I decided to visit our sibling for another week. My stay was not as comfortable this time. Her apartment is outfitted with a forced air furnace with a single temperature control. Because of only the only temperature control, every room is heated to the same temperature. The guest study room was always slightly boiling, and I’d wake up damp with sweat. Plus, without the a/c drowning out other sounds, I had a great deal of trouble sleeping. I heard the wind chime outside our window, the furnace kicking on and off, and the pet barking. I even heard our sibling snoring in her study room on the other side of the wall. My sibling certainly needs to replace her heating plan to zone control. The guest study room is usually empty, and yet she’s paying to heat it all Winter time long.