ADHD and sleep are closely connected, and for many adults, bedtime can feel exhausting before it even begins. If your mind races, your body feels restless, or sleep feels unpredictable, you are not alone. Research suggests that 25 to 50 percent of people with ADHD experience sleep problems, including trouble falling asleep, frequent waking, and delayed bedtimes. These challenges are not a personal failure or a lack of discipline. They are frequently rooted in how the ADHD ner