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I don’t get it. Can you explain does this work and helps me sleep better?

I feel like the various readme and the landing pages do a good job of explaining the CBT-I psychology.

What parts of the learn more sections or pages didn’t make sense to you?

Why is it worth paying 60$+ a month for a 3 month minimum subscription(what's with that anyway..)? You could buy multiple CBT-I books for that.