Waking up at 3 AM every night can be a sign of stress, blood sugar imbalance, or hormonal changes, especially for women in their 30s and 40s. This article breaks down the most common reasons for middle-of-the-night wake-ups and shares practical solutions to improve sleep quality, regulate cortisol, stabilize blood sugar, and support hormone health. Learn how nutrition, stress management, and simple lifestyle changes can help you sleep through the night and feel more rested.