Rice is something that when we eat at dinner,makes us sleep. I prefer you to eat a normal food,but not stomach full,because that will take time to digest. Dinner should be light. A glass of milk is needed when you go to sleep.
People should not think,that if they will eat extra then the stomach wanted,then they will have a good sleep. If they will go on regular basis,is no good for the body,because they will problem in digestion and the slowly you will become fat.
light food like khichdi or rice item and glass of warm milk will give u a sound sleep. And you should eat before 7.30 because digestion power weakens in late evenings.