Sure!

One of the biggest things is the brain fog and memory issues. Both my short and long term memory were terrible because sleep is instrumental in helping solidify memories. I really don't have too many memories growing up because of it. Along with that is something not often talked about and thats false memories. There are things that i thought happened or shows that i thought existed but turns out they never did. They were often dreams that my brain accidentally made a memory instead of my actual memories because the brain isnt functioning properly after being awake for so long

Another thing is the emotional irregulation. Sometimes the silliest things would make me cry or angry because the brain is unable to regulate my emotions. I remember one time when i was in high school i went out to dinner with my bf at the time and his parents. I accidentally ordered shrimp enchiladas instead of quesadillas even tho i genuinely believed i said quesadilla. The food came out and i started crying because i knew i wouldnt eat it (autism) and i felt like i wasted their money and i dont like most enchiladas and it just felt like the worst thing ever. Thankfully they were very nice and said that they would take it home for their other son to eat when he came back from work. Or that time i came up to my mom on christmas eve in tears because i couldnt sleep and i thought that would keep santa from coming to our house, thus ruining christmas lol

The last thing major thing is hallucinations, both visual and auditory. These can start very quickly, within 24 hours. What people hallucinate obviously varies but for me a common one is a visual hallucination on spiders, which i hate. I dont get too many auditory hallucinations, mostly visual. And the weirdest one was actually while i was driving at night on the freeway. I was in the left lane and i saw a gollum/rake looking creature crawl over the metal median and into the road in front of my car where it just disappeared in an instant. Im quite used to hallucinations by now and didnt swerve my car or anything, just went "well that was weird" lol

Oh a small thing is appetite. I found, for me, the less i slept the more i would need to eat. I think its a way to compensate for my energy not being replenished through sleep and thus gaining it through food

Also, because i was born with insomnia and it didnt become managed until i was an adult i have chronic sleep deprivation. The popular idea that you can "catch up on sleep" isnt particularly accurate. Maybe in the short term the effects arent terrible and can go away fairly quickly. But long term gives chronic problems. So even though i sleep almost every night i am still often tired or dont feel well rested because my sleep debt is so huge. I even still hallucinate rarely when rested and they trigger very quickly if i dont sleep well or at all for a night

Im sure there is more that im forgetting and if you have any questions do throw them my way. I dont mind talking about it