Now I lay me down to sleep?

I close my eyes, fall asleep and awaken...elsewhere. I feel cool air, warm breath, soft kisses, pounding heart. I touch the door, a window, your hand. I speak to faces I recognize but do not really know. I feel emotions - anger, fear, joy, sorrow...love. I visit myriad places I know but do not recognize... Often, I am someone else, see through different eyes, speak with another's voice. Always I awaken wondering: Am I awake now, or am I asleep?