SLEEP APNEA.... CPAP Machine

I went to test the Cpap Machine, and it wasn't too bad.  I actually slept good. Beside all the cords hanging from my body and the mask in my nose, I slept like a baby.  I was actually well rested, but them I got home and slept the next day and and back to feeling tired. I think my doctor supposed to prescribe me a machine to use until I loose all this weight. ... Supposedly getting more oxygen at night and a better sleep is going to help me lose the weight faster so I don't become sepsis.