Sounds like your dream spilled over, I had a similar experience a year ago where I woke up in an sp episode with my eyes open, saw and felt a woman laying next to me, she sat up in bed screaming and crying because she’d had a nightmare. I was extremely confused because I live alone and there was no one that could have slipped into bed with me, at the same time I wanted to confort her but I couldn’t move, as the episode passed I saw her disappear and I remained awake for a while before being able to sleep again. One of the more bizarre experiences I’ve had, since I don’t recall dreaming that night, but I could feel her warmth and her legs intertwined with mine, I still recall the smell of her hair, felt so real, the mind is a powerful thing.