Have done in the past.. Now I will blitz a light session only if the mood strikes me.

Depends on what you want to do during listening. A low alpha to a high theta does nicely. I like anything between 4 and 11 hz. I choose something between 4 and 7 when I want about 20 minutes of theta simulation. It creates a nice wake me up if I have a long night ahead of me. Use a short 20 minute session. The longer the session the harder it is go get going again afterwards.

Alex