Abdominal cavity. Abdominal cavity, largest hollow space of the body. Its upper boundary is the diaphragm, a sheet of muscle and connective tissue that separates it from the chest cavity; its lower boundary is the upper plane of the pelvic cavity. Vertically it is enclosed by the vertebral column and the abdominal and other muscles.
Ok, here is the point, eating banana, avocado, humus etc it is a good before sleep in small portion, like a light food. Eating a lot of sugar, sweet yogurt, anything witch contains a sugar in ingredients is a bad at all not only before bed and it will make you a fat during the night.
I know you might have weight concerns if you eat right before bed, but maybe your not eating at the right times, nor are you eating the right portions. You should try splitting your dinner in half and eating the rest 2 hours before you go to bed. You can also try yogurt. It will help regulate your digestive system.