Hypnagogia – cognitive phenomena on the onset of sleep
en.wikipedia.org
en.wikipedia.org
It's quite inconvenient.
Random phrases. I remember some of them.
"She is not fat anymore"
"Don't make jokes about my hair"
Always something really nonsense.
When I was a kid I had a terrible ear infection, and I was going in and out of this state all night. I had also just discovered Pokemon and had been playing it all day.
I realized that I was injured and the solution of course was to be recalled to a Pokeball. I tried in earnest to do this for who knows how long. Eventually it hit me that I didn't have any other Pokemon I could switch to so sadly it wouldn't work.
It sounds like a joke when I put it into words but it felt very real. Honestly in retrospect I think the distress was worth the unique experience (and subsequent amusement).
I had funny imagination while having fever as a kid as well. Could imagine a surface switching from being satin-smooth to edgy and rough in a perfect transition - maybe some form of texture-halucination..? anyways, the way it would "feel" to the touch is how it felt emotionally as well - super hard to describe but an interesting link to experience somehow :)