Cadillac Repair: Electrical Problems, cadillac dealer, air shock

Question
I have a 1997 Cadillac Deville Concours. It has the Northstar Engine. Anyway about month or two ago my car would be dead when I would wake up in the morning to start it, and this happened just about every morning. I changed the alternator and the battery and still had the problem. I took it to the Cadillac Dealer and they checked it and said the alternator was good, but said the cable was bad and something about the spacer. They changed everything and recharged the battery and two days later, my car went dead on me again when I woke up to get into the car. Nothing would turn on, it was just dead. Please help!

Answer
do you hear anything like a motor running after you turn off the car at night or when you start it first thing in the morning ?.

If you smoke pull out the lighter and leave it out as it could be faulty draining your battery.

could be the air shock pump that intermittently runs during the night. Did you ever notice if the bac end of the vehicle was much lower than the front first thing in the morning ?.