Absolute knowledge is something which I cannot comment about. Why do people pray to God? To get their wishes fulfilled? I pray to God, for no reason that I know, when I pray to God, which is very rarely. In fact, I don't pray to God, because in praying to God, one asks God for something or another. But I think, I am God's humblest contemplator. I never ask God, for anything, because of who God is. I am very agitated in my love for God, so, I don't try to think of him, very often.

Absolute knowledge is the knowledge someone has that nobody is sleeping?

If it is so, nobody has absolute knowledge because it is always possible that it is a time now that someone is sleeping.

The knowledge which knows itself & every thing simultaneously is called 'Absolute knowledge' where as the knowledge which knows every thing and  can't know itself is called 'Common knowledge'

Your knowledge which knows that,there is nothing in sleep is called 'ABSOLUTE KNOWLEDGE'. well said witnesser .sleep is just sleep the more we are ignorance the more we need sleep to refresh us whereas the less we are ignorant the less we need sleep as we get lot of positive energy while we are meditating.meditating is the only way to know whom we are and to know the absolute knowledge