lmorovan,
Then why do you refuse to see that Luke is providing different information that the others? We have come to this point because you refuse to entertain the idea that your belief in Soul Sleep is incorrect because it looks like you have built many other beliefs on top of it or in conjunction with it.
Do you believe that the 3 disciples saw an actual event that we refer to as the transfiguration or not? If you don't, please provide Scriptural support for your view, because you have not done so up until this point.
We need to not try to conform the Bible to our views, but our views to the Bible.
If you consider the gospel of Luke inspired and the infallible Word of God, then you must accept that the 3 disciples were wide awake when they saw Jesus transfigured and talking with Moses and Elijah.