SUGAR LAND, Texas Staying up late (probably with too much screen time) has just been the norm for a lot of kids for months. This means returning to class, whether on campus or online, is bound to be a rude awakening for some. Pamela Sanders, MD, from Kelsey-Seybold Clinic in Sugar Land, said children need 9-11 hours of sleep. Usually within a couple of weeks, people can get onto whatever schedule theyre going to need, Sanders said. For online learning, Sanders said the most important thing you can do is create some kind of structured schedule to set them up for success.