Persistent sleep problems in children associate with high levels of psychosocial, somatic and medical problems. In paediatric health care more attention should be paid to recognizing, monitoring of the persistence and treatment of sleep problems before school transition period.

Parental smoking is associated with symptoms of perennial rhinitis in children. The possible role of environmental tobacco smoke should be taken into account in parent counselling and in evaluation of children being treated for symptoms of rhinitis and nasal obstruction.