Similar feedback as https://hyp.is/BxCKjE14EfG515e-XtpjQg/wanda-engine.pages.dev/rules

This is not helpful enough, mention what the recommendation is (Nap length should not exceed x hours and wake windows can be healthily increased by x). This could be offered via a premium subscription but free users should be able to see what the premium version could offer.

Don’t cítate source here unless relevant for all regions, instead say “common” (Avoid terms like normal). If we have to cite, then use the source name entirely (world health organization)