Suggested back to school sleep chart shared by school goes viral

A suggested back to school sleep chart is being shared on Facebook at record speed.

A Wisconsin elementary school posted it as a sort of helpful guide to shut-eye, but moms and dads are scoffing at it like crazy - calling the recommendations ridiculous and not feasible in the real world.

The chart shows suggested sleeping hours for kids 5-12.

It suggests if your child is 5 and needs to wake up a 6 a.m., he or she should be in bed by 6:45 p.m. For 8-year-olds, bedtime is 7:30 p.m.

Parents say between work schedules, dinner, homework and the like, a bedtime in the 6:00 or 7:00 hour is not realistic.

Experts say no matter what works for your family, just make sure your kid gets enough sleep to rested up for school.

So far, the post has been shared over 380,000 times.