Peter and his companions were heavy with sleep, but they came fully awake and saw his glory and the two men standing with him.
In context
30And two men were talking with him: they were Moses and Elijah, 31who appeared in glory and were speaking of his departure, which he was about to bring to fulfillment in Jerusalem. 32Peter and his companions were heavy with sleep, but they came fully awake and saw his glory and the two men standing with him. 33As these were leaving him, Peter said to Jesus, “Master, it is good that we are here. Let us put up three shelters, one for you, one for Moses and one for Elijah” — not knowing what he was saying. 34While he was still speaking, a cloud formed and cast its shadow over them, and they were afraid as they entered the cloud.