I'm trying to fix bedtime but analyze: should I lock wake time instead and let bedtime float? Map the sleep pressure strategy: same wake time every day builds sleep pressure that naturally corrects bedtime. Calculate: if I wake at 6am regardless of when I slept, how many days until my body forces earlier bedtime? Show me the wake time lock method: this is the optimal wake time for my schedule, stick to it religiously. Give me the implementation: wake same time for 14 days, track natural bedtime correction. Include: why fixing wake time is easier than fixing bedtime, how sleep pressure builds, and whether I'm fighting my body by forcing bedtime.