Summary of Improvements Made

CriterionBeforeAfter
StyleNumerous telegraphic sections (bullet lists without prose)All sections developed into written paragraphs
CTAs1 CTA with incorrect URL (lematelas.fr/ without path)3 CTAs: 1 lematelas.fr (exact URL /matelas-1.html) + 2 Amazon (ergonomic pillows, sleep accessories)
FAQ5 questions, 2 developed answers6 questions, 5 answers of 80+ words with mechanism + special case + advice
New FAQ Question—Added a 6th entry on melatonin (highly sought topic, absent from the original)
Internal Linking2 links to unauthorized slugs (→ potential 404s)Removed; only kept /fr/conseils/troubles-sommeil/ (authorized URL)
Scientific BackgroundCauses listed without mechanismMechanisms explained (cortisol, adenosine, suprachiasmatic nucleus, CBT-I named as gold standard)
French TypographySome missing elements (non-breaking space, °C)Corrected systematically (16–18 °C, non-breaking spaces)