Not sure if I am hyjacking your post, Nowme1, but it seems sensible to add my experience of Ultra Deep Sleep to yours.
Level 4 weeks 3 and 4 have seen me revert to type: insomnia which is hampering my daytime functioning, plus it is most annoying for my Best Beloved to sense my brain firing at every synapse when sane mortals should be recuperating. This wakefulness is plain boring for all concerned. Circular thoughts of no real content going absolutely nowhere.
I had two options: either put on a Brain Ev level 1 session as this seems strongly hypnogogic and banishes any form of thought for significant periods (just my experience). Or try Brain Salon's Ultra Deep Sleep. We have it on my iPod now, so no risk of snoozing off to Deep Sleep and then waking up to a track designed to gizz me up. [Nikaya and Tiffany, thanks for the pointer regarding the mode button on CD player..... I will investigate this option too.]
Forewarned is forearmed as they say and I knew I was in for an electronic fruit salad (if this puzzles you, refer to my Happy Pill contribution). Distraction was what I needed, I thought, so I put in my earplugs, picked up a trashy romance I have read twice..... and let the celestial seasoning run while keeping my mind on the book. About 7 minutes later I noticed I was calming towards sleep, so I put out my light, and attempted sleep.
That was the last I knew of anything until 6 a.m. when the alarm woke me. As it was Sunday morning, I went back to sleep seamlessly until 8.30. Eureka! Great news for both Best One and me. I have no memory at all of the soundtrack, so it works if I can let go of my focus on the annoying electronic sounds.
I am so pleased because I really would like to use Brain Salon to induce brain states as required.