Some cats have a hereditary condition of the esophagus (food - pipe) or cardiac sphincter (valve at top of the stomach which usually prevents regurgitation); these conditions can worsen with age and are usually treated by placing the cat's food bowl on a chest - height stand so the cat eats standing up. (petpeoplesplace.com)
People put a heavy emphasis on not eating heavy before bed, which is good, however of all the evils we can do to the digestive track, the biggest is to put clean food like salads or fruits on top of a stomach that is filled with bacon and eggs. (bonberi.com)
Also, sitting them in the upright position while feeding will contribute to keeping an excess air towards the top of their stomach for easy release while burping. (momtricks.com)