So, we have a 2300 sq ft home in west Texas. The bedrooms are separated from the rest of the house (approx. 900 sq ft). There is a door that can be closed to separate the bedrooms from the rest of the house. The thermostat and return are also located in this bedroom area. My question is this: are there any benefits or negatives to closing this door in the evening to keep from heating/cooling the entire house at night? Here's the thing though, I don't want to have to close the ten other vents that are Iocated in the non bedroom area of the house every night and then open them back up in the morning. My thoughts are that if I close the door, the bedroom area will warm/cool faster and we won't have to heat/cool the rest of the house to the same temp. Could shutting the door mess with the return air or cause the unit to stress? Any thoughts would be appreciated.