The other day it was morning and I was half asleep, and I closed my eyes because I didnt want to properly wake up. Then I started to hear these swishes from one side of my head to the other, which wasnt a problem because I've had them before, but they started getting louder and louder, and eventually, I could see just blue, and everytime I hear the swishes I could see firework-like things moving from one side of my vision to the other, following the sound. Eventually the swishes sped up so much that it was just a constant sound, and I could see white with pink noise, and as the sound got louder, the white got brighter, and brighter, and brighter, 'til it basically took over me. Then I had a few seconds of a really good feeling, cant really explain it, but it was good. Then I slowly opened my eyes thinking I was dreaming, and AFAIK, there was a very fresh wind in my face (I wasnt fully aware of things at the time), and I could feel my hair moving, but it felt longer than usual. I tried to move my hand to pinch my nose so I could do an RC, but it seemed I was in sleep paralysis still. After a while, I could move, and I wasnt dreaming, my hair was still short, and all the windows were shut and there was no wind. What happened here then?

P.S. I had a few beers the previous night.