Standard advice but analyze: which rules matter for MY sleep? Map all sleep hygiene rules: darkness, cool, quiet, consistent, no screens, etc. Calculate: if I tested each rule individually, which actually affect my sleep? Show me the personal hierarchy: these rules matter most for me. Give me the essential set: focus on these, relax on others. Include: whether I'm following rules that don't help me, personal vs. universal rules, and what I can ignore.