Is it possible if you sleep next to someone that you could end up having similar types of dreams, I very rarely have bad dreams but the only time I do my boyfriend also has them is this just coincidence
I would say it might be because you've either been watching horror films, or been discussing things together & that it's been on your minds during the day, or just before you've gone to bed - hence dreaming the same or similar things.
That is the only explanation I can think of anyway.