I've translated everything in English, even the result pages. I have couple ideas how to find deep phase of sleep, using kernel estimators (it's from statistics). But the problem is, for different setups you'll have to adjust the parameters individually. And I'm thinking how to make those parameters adjustments user-friendly. Guess it will take a while. Sorry, with my last year PhD it's hard to combine hobby and work together. I simply have no time for both.