Slowing Down Wakening

I have not yet had an LD, but I have been inching towards it, including seeing a crystal clear 2D image for a few seconds, which then dissipated. My challenge is that I seem to pass from dreaming/sleeping to awake very, very quickly. I have tried remaining immobile in the waking position, but still the dream disappears so fast. I never recall anything like a hypnopompic transition, although apparently I am just not yet able to detect it. Any suggestions for slowing down the wakening process will me most appreciated. Thanks!