I’ve had it happen the other way around. Where I’m driving and realize I’m actually asleep and get startled awake because I shouldn’t be driving while sleeping.
I once drove from Atlanta to Indiana after only getting about 4 hours of sleep over 3 days. Down roads so slushy I had to use the wiper fluid regularly and stop to add more twice. I was hallucinating. At one point, I pulled over to a rest stop to sleep for a little bit and a cop made me leave. I have no idea how I made it home.
I once drove to a concert alone (got flaked on) and by the time I left to go home, I had been up for about 30 hours. I had to stop at a random truck stop to take a nap in my car so I wouldn't die.
I hope they don't live in America where driving is essential to do anything (especially work) and where there is shitty public transportation so there really aren't alternatives.
Took some benadryl at home for allergies and had no reaction at all. Hour later on the drive back from the clinic and I could not keep my eyes open and had to smack myself to keep me awake. Worse feeling ever, especially that drug induced sleepiness.
I was young and broke and recovering from a surgery. Went back to work before I was recovered fully. They had me on some good pain meds, but it still hurt sometimes. I went to get gas on my lunch break and some lady at the gas station saw I was in pain and said "here, try one of these" and handed me a pill, which I immediately took.
The ensuing drive was one of the scariest things I've ever done. This was a rural road lots of hairpin turns, which people drive at 50mph riding your ass. No cell service, so I couldn't call someone to come help me. Nowhere to pull over. Literally no shoulder or turnouts, just treeline on one side and short cliff on the other. It was awful. I realized halfway through exactly how out of it I was.
That road was a death trap. Some politician's son eventually died there so they finally widened it and added shoulders and stuff.