Looking on the internet deeply has found these results:

Before i know it i'm fast asleep is the most popular phrase on the web.

Before I know it I fall into a deep slumber 10 results on the web	Before i know it i'm fast asleep 18 results on the web More popular!
Some examples and use cases from the internet:	Some examples and use cases from the internet:
It doesn't look like this phrase is very popular! The search could not find any examples on the internet.	Sep 3, 2014 ... ... most of the time unless I had too much caffeine, which I don't do too often. Normally, I just start praying and before I know it I'm fast asleep. May 1, 2013 ... Before I know it, I'm fast asleep. Alex. By Me. I come back from my run hot and sweaty, and fully ready for some food. I grasp the vine and pulled ... ... test, what I did that day, etc. As quickly as they enter my mind, I imagine them floating away and don't think of them any more. Before I know it I'm fast asleep ... Jan 6, 2015 ... ... camomile tea and good intentions to get stuck into my book, before I know it i'm fast asleep without even getting past the first page! needless ...

Before I know it I fall into a deep slumber

10 results on the web

Before i know it i'm fast asleep

18 results on the web

More popular!

It doesn't look like this phrase is very popular! The search could not find any examples on the internet.

Sep 3, 2014 ... ... most of the time unless I had too much caffeine, which I don't do too often. Normally, I just start praying and before I know it I'm fast asleep.
May 1, 2013 ... Before I know it, I'm fast asleep. Alex. By Me. I come back from my run hot and sweaty, and fully ready for some food. I grasp the vine and pulled ...
... test, what I did that day, etc. As quickly as they enter my mind, I imagine them floating away and don't think of them any more. Before I know it I'm fast asleep ...
Jan 6, 2015 ... ... camomile tea and good intentions to get stuck into my book, before I know it i'm fast asleep without even getting past the first page! needless ...