Dear hopelessclarity,
Even though it is 3 years since you put your post out, I am writing this reply, in case you happen to read it and also for others who might want consolation.
I am exactly the same as you, never been able to orgasm in the conscious state, yet have had great ones during sleep just before waking in the morning.
You must know this; the so called experts still do not know everything about the female orgasm, to them it is still a mystery organ which remains the topic of many unanswered questions such as yours.
So, don't listen to them when they make you feel like it is your fault, it could be just the way we are made and the sooner the experts accept this the better. I have tried everything and know I do not have a problem with relaxation or broadmindedness. Like you, I find the clitoris to have no or at best very little sensation, it's like the wiring has been cut.
I am grateful that I have my sleep orgasims as I believe they are more intense than the awake ones. Ha ha. Enjoy my friends, enjoy - our sisters may never know what the cake tastes like with the icing on top!!!