I don't know the answer to this clolibre but I found a few passages:
mark 1,35 35 "The next morning Jesus awoke long before daybreak and went out alone into the wilderness to pray."
luke 5,16 "But Jesus often withdrew to the wilderness for prayer."
luke 4,40 "At daybreak Jesus went out to a solitary place."
he was praying through the forty days in the wilderness of course and he was praying through the breaking of bread at the last supper. then he was praying in the garden of gethsemane while the disciples couldnt keep their eyes open and he must have been praying whenever he healed . . .
there is one reference to Jesus spending the whole night in prayer but I couldn't find that passage.