Not tried it yet with a full WILD attempt - I think it would be distracting. I meditate to Theta, Gamma and lambda - normally for 30 minutes a day -and get HH after about 20 minutes so im sure its possible if you keep going.

I like Jeffery Thompson's stuff personally. Delta is good for deep sleep. Theta is good for dreaming, gamma and alpha for meditation

I have a copy of his alpha/theta suite. These 2 20 minute tracks are designed to keep you borderline between the two states. One sounds like a thunderstorm the other like a running river.

I have a sleepsonic pillow (has stero speakers built in to the pillow which is WAY more comfortable than trying to sleep with headphones or buds). I have a ipod playlist which starts with Delta tracks to get me to sleep - then theta for an hour or two - then repeated alpha/theta tracks.

I do hear them in my sleep. The first night I tried it I had odd dreams. In my dream the sky was blue and clear but we kept hearing thunder, I was asked by this woman to get a metal ladder off her roof because she thought ligtening would strike it and cause a fire! The thunder was of course the alpha/theta suite playing. Im hoping with a little repeated use I willl know I am dreaming when I hear thunder...