If your child would like to improve his or her GPA, have them try this...

If you’d like a higher GPA, try going to bed earlier. 

A recent study found that students with a later bedtime during the school year had lower GPAs than those who hit the sack earlier. The participating students were split into groups by bedtime. The late group had an 11:15 or later bed time. The middle group called it a day between 10:15 and 11, and the early group was sound asleep sometime before 10:15. Using their cumulative GPAs, the researchers determined that the earlier they got to bed, the higher the GPA was likely to be.