Waking up in the middle of the night feeling really weird?

Last night I kept waking up at around 5 am ish (I went to bed around 1:30) But it felt like it was happening multiple times over and over, and there's no other way I could describe other than I felt like I was extremely drunk. It was really weird and I was wondering if anyone had any idea what happened? I was thinking weirdly and my vision was off, and I just kept waking up. I also was tossing round the bed a lot which doesn't normally happen with me. Eventually I woke up and it was about 9, and I felt absolutely fine. But I'm really confused as to what happened. Is there a specific cause for this or...?