Table 1.

Criteria for Insomnia Disorder, Perinatal Sleep Disruption, and Low Complaint statuses

DSM-5 Insomnia criteria	Insomnia Disorder	Perinatal Sleep Disruption	Low Complaints
A. Dissatisfaction with sleep quantity or quality, associated with difficulties initiating sleep, maintaining sleep, or early morning awakenings.	Yes	Yes	Yes/No
B. Clinically significant distress or impairment in important areas of functioning.*	Yes	Yes	No/Yes (when no to C)
C. The sleep difficulty occurs at least 3 nights per week.*	Yes	Yes	No/Yes (when no to B)
D. The sleep difficulty is present for at least 3 months.†
E. The sleep difficulty occurs despite adequate opportunity for sleep.	Yes	No
F–H. Symptoms not better explained by another sleep disorder, substance, or medical/mental health condition.	Yes	Yes
Common examples:	“I toss and turn and it takes ages to fall asleep, even when my baby is sleeping”	“I’m getting bigger, get up every couple of hours to use toilet…Just wish I could get comfortable…”	“My sleep is not as good, but given the circumstance I think I’m sleeping okay”

*Both B and C are met (Yes) for Insomnia Disorder and Perinatal Sleep Disruption; B and C are not simultaneously met for Low Complaints.

^†Duration criteria was not used in this study to characterize current Insomnia Disorder status. See measures for details.