Normal Sleep and Sleep Fragmented Mice (IMAGE) University of Chicago Medical Center Caption By 24 weeks the sons (below) of sleep-disturbed mothers weighed about 10 percent more than the sons (above) of mice with uninterrupted sleep. Credit Abdelnaby Kahlyfa Usage Restrictions None License Licensed content Disclaimer: AAAS and EurekAlert! are not responsible for the accuracy of news releases posted to EurekAlert! by contributing institutions or for the use of any information through the EurekAlert system.