Why bad sleep one night makes your cortisol spike in the morning
0732 Poor Perinatal Sleep Quality Is Associated with an Elevated Cortisol Awakening Response
Not medical advice. For informational purposes only. Always consult a healthcare professional. Terms
When moms sleep worse than their usual self, their body releases more cortisol when they wake up—but only that day, not because they’re tired overall.
No biological mechanisms were identified in this study. This may be an epidemiological, observational, or survey-based study that reports associations rather than proposing causal biological pathways.
Systematic Reviews & Meta-Analyses
Max 100Randomized Controlled Trials
Max 90Cohort Studies
Max 72Case-Control Studies
Max 58Cross-Sectional Studies
Max 44Case Reports & Case Series
Max 30Expert Opinion & Narrative Reviews
Max 550 / 72
Evidence Score
Groups of people are followed over time to see who develops an outcome. Strong for identifying risk factors and associations, but cannot prove causation as firmly as RCTs.
Not medical advice. For informational purposes only. Always consult a healthcare professional. Terms
When moms sleep worse than their usual self, their body releases more cortisol when they wake up—but only that day, not because they’re tired overall.
No biological mechanisms were identified in this study. This may be an epidemiological, observational, or survey-based study that reports associations rather than proposing causal biological pathways.
Systematic Reviews & Meta-Analyses
Max 100Randomized Controlled Trials
Max 90Cohort Studies
Max 72Case-Control Studies
Max 58Cross-Sectional Studies
Max 44Case Reports & Case Series
Max 30Expert Opinion & Narrative Reviews
Max 550 / 72
Evidence Score
Groups of people are followed over time to see who develops an outcome. Strong for identifying risk factors and associations, but cannot prove causation as firmly as RCTs.
Publication
Related Content
Claims (5)
Women who experience sudden disruptions in sleep during pregnancy or after childbirth show higher levels of cortisol upon waking, which may be linked to complications during or after pregnancy through changes in stress hormone regulation.
In women during pregnancy and after childbirth, fluctuations in sleep quality from their own normal pattern are linked to a stronger rise in the stress hormone cortisol upon waking, with greater deviations in sleep scores corresponding to higher cortisol increases.
The overall amount of sleep during pregnancy and the postpartum period does not predict the level of cortisol released upon waking; instead, sudden changes from a person's usual sleep pattern are more closely linked to this stress response.
Changes in sleep quality during pregnancy and the postpartum period do not alter the daily pattern of cortisol levels throughout the day, but they may still affect the spike in cortisol that occurs shortly after waking.
During pregnancy and shortly after childbirth, the rise in cortisol levels upon waking follows an upward pattern, which contradicts earlier beliefs that this response decreases during pregnancy and returns to normal right after birth. This suggests that people differ in how their stress hormone systems behave during this time.