Completely wrong I am afraid.
The reason you don't WILD before sleep has absolutely nothing to do with tiredness at all.


It is all to do with the REM stage of sleep. You only reach this stage after about 5 hours of actually being asleep or so.
The REM stage is the point at which you start to dream. You cannot dream before you have reached this stage. The whole point of a WILD is that you are re-entering the REM stage which you have ALREADY REACHED!

If you have not already been asleep you will never, ever reach SP.
You are wasting your time trying, it is physically impossible.