What are you eating in the morning? This could have something to do with it. If you are eating fruit mixed with cereal or other foods this can cause gas. Fruit uses a different digestive enzyme to break down and when mixed with other foods the fruit will take longer to digest causing fermentation - therefore gas. Just keep in mind what you eat and how long after you fall asleep in the chair. You may also be in the middle of digestion and interuption too can cause gas.