These differences could be due to the support provided by family members during the ritual of doing the month and
by satisfactory spousal relationships, but not captured by the PSSS. The extra support of family members is offered
in the weeks and early months after the new mother resumes her normal activities, extending into the 6-week
assessment of this study. However, relationship quality was shown to be dynamically and bidirectionally related
to sleep (Troxel, Robles, Hall, & Buysse, 2007). This phenomenon was explained by a model in which sleep is promoted
or disturbed by physiological responses to a sense of safety and security (healthy relationships) or a sense