For sure it is good to go out and enjoy followed by a lengthy sleep 🙂
I know how it feels to stretch the day, data after day. To get little sleep. Done this for a large part of my life. Always felt a bit of a non-rested body, but my mind was on top of everything, as I usually felt it. But honestly, when sleeping more hours, enough for our body to be rested, our minds can handle more, and in my case, is also working faster. Not always, but most of the time. Our minds/brains need a certain amount of hours of off time so it can revive and restructure. Loose what it needs to lose and all that. Not my words, but those of the specialists. And in fact, I believe it works. Last few years I have tried to take enough rest each night (not always happened though) and feel my mind is on average doing things more quickly. Food may also have an impact. For instance, when I eat a lot of carbs, my body AND mind is darn slow the next day,