I beg to differ.
Ok, maybe I'm not entirely right... but sure feels like it. I spent 10 nights in a row where I didn't get enough sleep due to a poor decision I made of dog-sitting a dog I don't know well and tends to bark a lot. Clearly, I didn't know her well. After those 10 nights I embarked on my next adventure: a long weekend in Jackson Hole. That didn't involve much sleep either although lots of physical activity.
Ask my man... I was not a happy person. I was EXHAUSTED. As soon as we got back home, I got sick and I have been forced to go to bed early. I've slept for 10hrs straight two nights in a row. Talk about a lack of sleep. Today, I feel great! Still a little congested, but at least I feel energetic again. It's been probably over a week since I've felt energetic... it's been sad!
Anyways, my point being, ok, my brain and body will probably forever remember these nights without enough sleep, but I feel good and a couple good nights will make up for the crappy 2 weeks of sleep. Welcome back to my happy self.