Some tend to forget (or just simply do not know), that the body still burns calories (anywhere from 50 up to 100 per hour, dependent upon personal factors such as age, body weight, etc), though the focus of what the body actually does may shift to other things during sleep hours. These calories are not much different (in the what are used sense) then sitting at a PC all day, which is about 110 per hour (dependent on the personal factors as stated previously). It just doesn't pass the basic and fundelmental common sense test. In addition, even though things are a little slower, one also has to allow digestion time (dependent on what is eaten), and even then its not "much" less then lounging in a chair for 6 to 8 hours. Its basics, IMHO.
After losing 40+ unwanted lbs: