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CBT-I is psychotherapy targeted at treating one specific cause of insomnia. It does not address any of the physical ailments that may also lead to sleep disorders.

If you aren't careful, you'll lose your internet medical license with such bold medically unsound claims.

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I think our friendly internet medical doctor was trying to say that there are some useful principles in CBT-I that could be helpful for a lot of people, which is probably true.

As someone who took way too long fussing with sleep hygiene and the like before finally getting a proper sleep test though, I see the potential danger of telling people what to do first. (Though in my defense, I did get a sleep test a while back and it ended up the sleep tech was trash and I should have gotten a second opinion)

CBTi is generally effective, and "physical ailments" are not generally suspect in the case of insomnia. You can get checked for ailments such as sleep apnea anyhow and CBTi doesn't somehow jeopardize that. It's not like it has to be either or.

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