I have a problem and dont know how to solve that.

I drive home from work with the bus every day. And every day I fall asleep during the drive (always listening to music).
I dont fall asleep completely but experience SP every day. I get hallucinations, wake up every few minutes or seconds and then get hallucinations again when falling asleep.
So I´m in a state of SP about an hour before I arrive at home. I cant WILD, because the movements of the drive wake me up every time the hallucinations (or dream) starts to get clearer.

Of course I wanted to use that. My walk home is less than 5 minutes, so sometimes when the SP was extreme and I had a lot of vivid hallucinations I come home and immediately go to bed, trying to WILD.
Unfortunately it NEVER works at home! I thought it´s maybe because of the music, so I tried that, but with no success either.

What´s the difference of sitting in a bus or lying in bed? I dont know why I have SP experiences every day in the bus but not at home.
Anyone knows the reason for this?