Jayapataka Swami: Since this is a more personal question, I don’t know the personal details ,how many hours’ you are sleeping. Generally, if we don’t eat too heavy prasāda at night time, Śrīla Prabhupāda would take some puffed rice, or some light evening meal. He said this is a stomach cheater! Actually, it has not much food value. But you chew it, and this way you cheat your stomach that you ate something. So he would advise people who had difficulty with sleeping late, not to eat a heavy meal late at night, and going to bed a bit early, usually they say, it was not said by Śrīla Prabhupāda, the doctors say that sleep before midnight, is more potent. I am not the one to speak, since many times I end up preaching late at night! but maybe you can write me an email and I can see how I can answer your question more personally.