Effect of Sleep Extension on Ceramides in People with Overweight and Obesity

This study looks at whether extending sleep duration — getting more sleep each night — reduces levels of ceramides in the blood. Ceramides are fats linked to heart disease risk, and people who sleep less than 6.5 hours per night tend to have higher levels. The study tests whether simply sleeping more can lower this risk. **You may be eligible if...** - You are between 18 and 45 years old - Your BMI is between 27.5 and 34.9 (overweight or mildly obese range) - You regularly sleep fewer than 6.5 hours per night on average - You do not have a diagnosed sleep disorder **You may NOT be eligible if...** - You have a diagnosed sleep condition (like sleep apnea or insomnia) - You have major health conditions that affect sleep or metabolism - You are pregnant or breastfeeding - You work night shifts or have irregular sleep schedules that cannot be changed Talk to your doctor to see if this trial is right for you.