The only thing you can try is burning a couple of related sleep tracks together and listen to then back-to-back... To give you an example: you got an important presentation tomorrow at work; you might want to listen at night to the sleep tracks from "Sales Leap" & "Self-Esteem". Otherwise, as Alex said, you must take a min of 20mins break between them.
[This message has been edited by harry_d7 (edited November 03, 2005).]
