when ever i start trying to go to sleep i start daydreaming and my sub-conscious uses that as a trigger for me to go to sleep and i go into a trance like state before coming up with a whole new idea to start daydreaming about and this daydream i am only slightly aware of reality before completely losing touch with reality and going into a dream.
Anyway the annoying thing is my sub-conscious interprets the mantras as a trigger so i immediately start daydreaming and go to sleep, before waking up in the morning really annoyed.