The Developmental Expressions of Behavioural Dysregulation in a 25-Month old Infant Presenting with Sleep Problems: The Case of Emily.

E was 25 months old when she was referred by her pediatrician because of her severe sleep problems. Her parents reported that she had never been a good sleeper but during the preceding nine months she would wake up every 1-2 hours and then scream for between 45 and 60 minutes without either parent being able to calm her. As her bedtime was between nine and ten PM and she would be up by six AM, this made for short nights and insufficient sleep for Emily overall. Once or twice weekly she would “collapse” around six to seven PM and sleep until about midnight but then demand to be entertained for the rest of the night. At daycare, which she had entered at age 13 months, she sleeps for one hour during the two hour nap at noon and lies quietly in her crib for the other hour without ever crying.