- Conditions or behaviors likely to affect trial conduct: unwilling to accept random assignment; participation in another randomized research project; parent unable to read and understand English at the 5th grade level; presence of bipolar or seizure disorder (potential sleep restriction); restless leg syndrome, major psychiatric disorder other than anxiety or depression; child with major cognitive or developmental delay; unable to complete forms, implement treatment procedures, etc. due to cognitive impairment; psychotropic or other medications (beta-blockers) known to alter sleep; participation in other CBT treatment or nonpharmacological sleep treatment; or any other condition/situation which would adversely affect trial participation.