Figure 3.

Prevalence of sleep difficulty across menopausal transition during longitudinal follow-up (average rates for each menopausal stage; N = 3,045). Data are reported separately for 3 types of sleep problems occurring 3 or more nights per week in the previous 2 weeks: trouble falling asleep, waking up several times during the night, and waking up earlier than planned. Adapted from Kravitz et al (2008) with permission.³²