Build a realistic plan to fix bad sleep by establishing a wind-down routine, a consistent schedule, and practical daytime and environment fixes. It addresses common sleep disruptors such as screens, caffeine timing, erratic schedules, and room temperature. Use this skill when a user needs help fixing their sleep schedule, building a bedtime routine, or managing nighttime awakenings. It produces a comprehensive readout including likely disruptors, a step-by-step wind-down sequence, schedule and light/caffeine timing, room environment tweaks, and a clear rule for what to do when unable to fall asleep, while appropriately flagging persistent insomnia or symptoms like sleep apnea for medical evaluation.