School is finally out for many kids across the U.S. and the sun is up in the sky later and later. But doctors say that shouldn’t mean there’s no bedtime . Sleep is incredibly important for developing brains and bodies, and federal guidance says children aged 12 and below need 9-12 hours a night. Getting enough sleep also protects from the risk of developing chronic disease , suffering from mental illness and being injured. That’s why it’s crucial for kids participating in sports and other activities to have a bedtime even during the break, Cleveland Clinic sleep specialist Dr. Brian Chen said Friday . This way, parents will know their kids are getting the sleep they need. School’s out and it’s time for summer camps for kids across the U.S. Here’s why experts say you might not want to push their bedtime (Getty Images/iStock) “Kids at different stages of their life may go to bed and wake up naturally at different times. Younger kids generally wake up earlier. Older kids, teenagers, generally sleep in later.…