Need help in classifying my recent experiences

Preface: I've never intentionally initiated to have lucid dreams. I have experienced them occasionally (once every few months.) Since I have never made any attempt to initiate a lucid dream, no reality checks were used. In the lucid dreams that I have had, I simply "just knew" I was dreaming.

Anyway, on with my post. This past week I have experienced parts of dreams that I'm not sure how to explain (or what to call it.) First, on one partcular night, I put a pleasing song on repeat (playing over my PC speakers) to keep my mind from wandering so that I could fall asleep easier. Of course, eventually I did fall asleep.

However there were multiple time when I woke up during the night; and being awake, while just lying there, I actively listened to hear the song playing. But for two or three seconds, I heard nothing. After this brief silence, I heard the song pick up mid-verse. Each time that I woke up (or thought I woke up) I heard only silence. And when I did hear the song, it picked up mid-verse (so I know it wasn't just me coincidentally waking up at the beginning/end where brief silence would be expected.)

So what gives for these instances of hearing no music? Was I awake or did I just think I was awake?

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And yesterday, I [mostly] woke up, but seeing that I had only been sleeping for six hours, I decided to get back to sleep (eight hours is my norm.) But before I did, I imperatively felt the need to take one of my pillows down the hall on placed it on the floor.

Tangentially, had I kept a dream journal, I could tell you the reason why I felt the need to do that; all I can remember now is that I was finishing up something I was dreaming about (like I was trying to beat a deadline in placing my pillow on the floor down the hall.) In my mind, once I set the pillow down, I knew I could get back to bed.

Then a couple hours later, I woke up. But I forgot about the entire pillow incident at that point. When I finally got out of bed, I walked down the hall to see my pillow neatly placed on the ground. I just laughed out loud, because just the sight of it sitting there sparked my memory of actually putting it there (it was something I vividly remember doing.)

Obviously I was still in a dream-like state when I felt compelled to place my pillow on the floor. But obviously I was awake since it is something I vividly remember doing. What exactly would it be called or classified as?

Thanks.

Sounds like you were sleepwalking. Either that, or your dreaming part of hte brain stayed on long after you woke up and gave you strange hallucinations like the impulse to move your pillow. It's not abnormal, lots of times the brain keep dreaming after you wake up, although it's usually only for a second or two. I've had that last for a minute before though.