This list of sleep resources will help you find a board certified sleep specialist to get you sleeping better soon! (restonic.com)
Your child's doctor would be able to help you determine if this is the case and refer you to a pediatric sleep specialist if necessary. (parenting.stackexchange.com)
Sleep disorders can be treated by sleep specialists, who teach practical ways to overcome many sleep problems with methods such as cognitive behavioral therapy, which is a type of talk therapy. (health.com)