Interesting. I have full-on hypnagogic hallucinations which almost always manifest as something scary--a person standing by my bed, me falling into a hole, the sound of someone breaking into the house. Occasionally, though, the hallucinations are pleasant such as someone stroking my hair or even performing a sex act on me. Sometimes I just see random geometric patterns or hear strange sounds that aren't really there. By the time these things happen, though, I'm at the point where I can't pull myself out of them and reawaken so I have to just go with it. It happens about 2-3x a week.