I've never realised that hallucinations could occur so early, comparatively speaking, into sleep deprivation. I been awake for far longer on a few occasions (lo

I've never realised that hallucinations could occur so early, comparatively speaking, into sleep deprivation. I been awake for far longer on a few occasions (longest was a little over 110 hours), and only experienced minor visual effects (trails behind moving objects). I wonder to what degree it differs between people. Mentally though, I was a bit of a mess. I was more or less whilst I was focusing on the thing I was working on, but as soon as I stopped, everything just felt muddy and unclear. I wasn't even sure I was going to find my way to a building I'd walked to multiple times a week for the last three years.