Chung! I did a DEILD attempt this night and entered a sort of vivid state that felt like I was between awake and dreaming. It was like a vivid daydream that never transitioned into a vivid REM-dream..
You can read about it in detail in my DJ. Perhaps it's similar to what you experienced. I see my experience as a lucid NON-REM dream anyway perhaps hypnagogic state.