Pregnancy symptoms (nausea, urge to urinate, malaise, etc.) can be triggers for sleep disorders. Especially in the first and third trimesters.
Likewise, there are sleep disorders related to the needs of newborns. Although fathers can also assert themselves. Mothers develop the ability to hear babies cry at night, creating a pattern of hypervigilance that leads to sleep disorders.
Hormones are the enemies of restful sleep. During menopause, women tend to have hot flashes. These can be uninhabitable at night.
Keep in mind that there is a risk of obstructive sleep apnea during menopause. Here too, this phenomenon leads to night awakenings.
Another circumstance to take into account is that women are more likely to be affected by mental health problems, especially anxiety and depression. And, of course, her condition leads to sleep disorders.
All of these reasons could explain why you are not sleeping well! However, keep in mind that everyone wakes up once in the middle of the night and that sleep varies from night to night and/or from person to person. However, this does not necessarily mean that you have a serious problem. Monitor your sleep and fatigue levels. If the result is worrisome, consult a professional to determine the cause.