. >> and conde acamy is a esnonprofit educational rrce that's backed by the bill and melinda gates itfoundation. has thousands of inructional videos for students from kindergarten through earlymollege years fro coding and music to math and history lessons. >> key point here, parents ndould set limits when it comes to how mucs spen their screens. make sure the devices are all turned off an hour before bedtime. >> when we come back, our brain drain special continues with a look at summer sleep schedules. is it okay to let the kids sleep in past noon, and ho we'll hear some surprising new research on bed times. >>> plus, summer weight gain, and why kidsre more likely to pack on the pounds this time of theier. who'sost at risk, and what you o keep it from mom's finally finding her sea legs, and she's about 10 minutes from a hotel by wyndham. he's having the best. day. ever! and he's about 10 minutes from a wyndham. with over 6,000 hotels across the country, a great hotel by wyndham is closer than you think. visit wyndhamhotels.com. . >>> welcome backci to our spe edition of news 4 this week. doreen