Most people think of obstructive sleep apnea as a condition that impacts adults. Although obstructive sleep apnea is less common in children, it is still a risk that parents should be aware of. Between 1 and 5 percent of children are affected by it, and that it may be underdiagnosed. Dr. Sandeep P. Davé, pediatric otolaryngologist, compiled a list of sleep apnea warning signs for parents to be on the lookout for.