Was A Spirit Messing With Me In My Sleep?

Last night I had something interesting happen to me. First I should give some back story.

There is a simple prayer that I use if I ever sense negative energies or spirits in my household. The prayer is as follows: "Any negative energies or evil spirits that are present need to leave now and go to the white light in the name of our Lord Jesus Christ."

Now...last night I believe I was having some sort of dream and I remember I was in the middle of waking up. It was more like struggling to wake up, and while this was happening I was also in the middle of saying my prayer and I was struggling, trying to say it. I was asleep yet at the same time I was aware that I was trying to wake up. I also remember it being very cold on my right knee/thigh area. Mind you, I had a very heavy, warm blanket completely over me. I finally FULLY awoke and was frightened at what happened. When I woke up I realized I was laying on my back (and I was also most likely on my back during the struggle of waking up) and I NEVER sleep on my back. Always on my side. I looked down at my watch to see what time it was and it was 3:15am. Can anyone explain to me what happened? For some reason I'm guessing a spirit was maybe messing with me or heavens forbid, trying to possess me? Or was I simply just having a bad dream? Any help would be appreciated. Thank you.