Falling Asleep... In My Dreams?!

Hi, I've been having this dream every few months, no patterns that I can see in my daily habits for interpretation (which sucks!)
I keep having a dream in which I'm in my bedroom, and I suddenly can't control going to sleep, like something is making me go to sleep. It's an overwhelming feeling that I only resisted fully last night, which led to a very weird series of events. Here's two examples:

Dream #1:
I was in my bed, it was day time, and I pushed myself up out of bed. I felt an overwhelming need to sleep, and couldn't control it - like something was pushing my whole body down, only no-one was there. This was the first instance of this dream ever occurring, and I tried to resist it because I wanted to do something (I can't remember what). My back was to the door. All of a sudden, I feel hands on the back of my shoulders grabbing me, and I could see them from my peripheral vision - They were like shadows, but felt real. I turned around and I saw my friend, and then I woke up. And then I woke up again. (Dream within a dream).

Dream #2:
I was again in my bed last night, and I left the hallway light on before I went to sleep. My bedroom door was locked also. In my dream, I push myself up out of bed and I see the hallway light suddenly turn off. I assume my housemate turned it off and think nothing of it. I look at my door and it's ajar, but I'm not sure if it actually is or if I'm just imagining things, so I push myself up out of bed and again feel the overwhelming urge to sleep. This time I succeed in resisting it, but all of a sudden I'm pushed down (by the urge to sleep) and I start rapidly spinning around on my bed. I try to overcome the urge to sleep but it doesn't work, all the while I'm still spinning faster. I finally can move my hands and I start hitting them on my mattress, extremely weirded out and a little scared by this point, I call my housemate, but he doesn't hear me. And then I woke up. The hallway light was as I left it and my door was still locked, as I left it.

Funnily enough, I don't notice anything different about my room (dream vs real life) until I wake up. For instance - My dresser was on the other side of the room in dream #1, I had recently moved it from that side to the other side of the room. In dream #2, my laptop was missing from my bedside table, but I could still hear the audio from it, and my bedside table was also missing (and my room was semi-clean for once, ha!).

Is this anything that anyone can identify with? Has anyone had a similar dream?

I have had some dreams like this. Once, I dreamt that my family and I went to someone's house out of state. However, instead of joining the person in their house along with my family, I stayed in the car and slept for an entire day! In another dream, I was in some unfamiliar house on the beach. I was tired, so I went to sleep in a bedroom. I had a dream (within the dream) that I got up and looked out the big glass doors at the ocean and saw a waterspout (a water tornado if you didn't already know) accompanied by a fierce storm. When I woke up (in the dream,) it was 7:00 pm, as I looked at a green digital clock. I think we have these dreams because we are overly tired or we need more sleep. Just a speculation; I could be wrong.