Getting good sleep was one of the biggest benefits to me of getting sober, glad you had a good night. 6 days is a great accomplishment.
I'll throw a rotten carrot out there for you on another stick just for the heck of it: All the bad stuff that comes along with drinking? It comes back pretty much right away when you start drinking again. Even if you are sober for months or even years, alcohol doesn't care - you'll be right back to square one pretty much instantly. And the withdrawals and detox get worse and worse every time.