By Paul Muchowski, Ph.D.
I want to tell you about a conversation I overhear, in various forms, almost every week.
Someone asks a mother how she is doing. She says she is fine. She is tired, sure, but fine. The conversation moves on.
Here is what she is not telling you: she has not slept through the night in months, possibly years. She wakes at 3 a.m. and cannot fall back to sleep because her mind is already running through tomorrow. She has a persistent fog that makes concentration feel like wading through sand. She cannot remember the last time she woke up feeling genuinely rested.
Your mom has likely tried everything to get some rest, benadryl, over-the-counter medications, alcohol and yet…she is not fine. She is chronically sleep-deprived. And this Mother’s Day, I want to explain what that actually means for her health, why she is unlikely to fix it on her own, and what you can do about it.
The Numbers She Will Not Tell You
Let me start with what the research says, because the data are more alarming than most people realize.
A large-scale study published in the journal Sleep followed over 4,600 parents across six years. Mothers lost an average of 40 minutes of sleep per night in the first year after childbirth. Fathers lost approximately 15 minutes. That disparity alone is significant, but the more important finding is this: even six years after the birth of a first child, neither mothers nor fathers had fully recovered their pre-pregnancy sleep duration. Mothers were still sleeping 20 minutes less per night. The researchers found that income, parental age, and whether both parents were present in the household made little difference. The sleep deficit persisted regardless.
Twenty minutes may not sound like much. But sleep debt is cumulative, and the consequences of chronic insufficient sleep are well documented. A review in Communications Biology found that chronic sleep deprivation weakens immune function, elevates inflammation, and increases the risk of cardiovascular disease, metabolic dysfunction, and neurodegenerative conditions. A separate review in Medicina confirmed that sleep deprivation impairs attention, memory, judgment, and decision-making in ways comparable to alcohol intoxication.
In other words, the woman in your life who is managing your household, caring for your children, potentially working a full-time job, and telling you she is “just tired” is operating under conditions that a body of peer-reviewed research says are genuinely harmful to her long-term health.
What She May Not Know Is Happening
One of the cruelest aspects of chronic sleep deprivation is that the person experiencing it often cannot accurately perceive how impaired they are. Research consistently shows that people who are chronically underslept underestimate the degree of their cognitive decline. They adapt to a lower baseline and begin to believe that how they feel is normal.
Here are some of the things that may be happening to your mother, your wife, or your partner that she has stopped mentioning because she assumes they are just part of life:
Her brain is aging faster than it should. A 2021 study from UCLA, published in Sleep Health, found that new mothers who slept fewer than seven hours a night showed a biological age three to seven years older than their chronological age, based on DNA methylation analysis. They also had shorter telomeres, the protective structures at the ends of chromosomes that are widely accepted as markers of cellular aging. This was a small study, and the researchers appropriately cautioned that the effects may not be permanent. But the direction of the finding is consistent with the broader literature on sleep deprivation and accelerated aging.
Her immune system is compromised. Sleep deprivation disrupts the production and regulation of cytokines, the signaling molecules that coordinate the immune response. The practical consequence, as documented in a review in Communications Biology, is increased susceptibility to infections and a diminished ability to recover from illness. If she seems to catch every cold the children bring home, this is not a coincidence. It is a predictable consequence of insufficient sleep.
Her emotional regulation is under strain. REM sleep, the stage of sleep associated with dreaming, plays a critical role in processing emotional experiences from the day. When REM sleep is reduced, either by shortened sleep duration or by fragmented sleep that prevents the brain from reaching deeper stages, the result is heightened emotional reactivity, increased irritability, and reduced capacity for the kind of patient, flexible thinking that parenting constantly demands. If she seems shorter-tempered or more easily overwhelmed than she used to be, sleep may be the most important factor no one is discussing.
Why She Is Not Fixing This Herself
If you are reading this and thinking, “She should just go to bed earlier,” I want to explain why that suggestion, however well-intentioned, misses the point.
Mothers carry a disproportionate share of nighttime responsibility. The Sleep journal study found that mothers experienced significantly greater sleep disruption than fathers, a pattern the study authors attributed to mothers more often serving as the primary nighttime caregiver, even in dual-parent households.
Hormonal changes make sleep harder, not just shorter. For women in their 40s and 50s, perimenopause brings fluctuations in estrogen and progesterone that directly affect sleep quality. Research published in Chronobiology in Medicine reports that more than 40% of perimenopausal women experience clinically significant sleep disturbances. Night sweats, hot flashes, and changes in the brain’s temperature regulation fragment sleep in ways that going to bed earlier cannot solve.
The mental load does not stop at bedtime. The constant anticipatory thinking that motherhood requires, tracking who needs what, when, and how, creates a cognitive activation pattern that is difficult to disengage from. This is not a failure of willpower. It is a consequence of a brain that has been trained, by necessity, to be always on.
The result is that many mothers are caught between forces they cannot individually control: biological changes, structural inequity in caregiving, and a cognitive load that follows them into bed. Telling her to prioritize sleep without changing anything about the conditions that are disrupting it is like telling someone to breathe deeply while sitting on their chest.
What You Can Actually Do
I am a scientist, not a family therapist. But I have spoken with enough mothers to know that the most meaningful gifts this Mother’s Day are not objects. They are actions that demonstrate you understand what she is going through and are willing to help change it.
Take over the nighttime wake-ups. If you have young children who still wake at night, commit to handling nighttime duties for a sustained period. Not one night. A week, a month, long enough for her body to begin recovering. One of the strongest findings in the sleep literature is that consolidated, uninterrupted sleep produces dramatically better outcomes than the same total hours broken into fragments. Even a few consecutive nights of unbroken sleep can begin to reduce sleep debt.
Own the morning routine. For many mothers, the alarm is not a clock. It is a child. If you can take on the first hour of the morning, including getting children dressed, fed, and oriented, you give her the option of sleeping through the transition from her last REM cycle to natural waking, which is one of the most restorative periods of the night. This is a small logistical change with a disproportionately large physiological benefit.
Protect her wind-down time. The transition from an active day to sleep-ready relaxation is not optional; it is a biological requirement. The brain needs time to shift from sympathetic (alert, task-oriented) to parasympathetic (calm, recovery-oriented) nervous system activity. You can help by taking on bedtime duties with the children, handling the final kitchen cleanup, and creating space for her to have 30 to 60 minutes of genuine quiet before sleep. This means not asking her to solve one more logistical problem at 9:45 p.m.
Make the bedroom colder. This one is practical, immediate, and surprisingly impactful. Both Harvard Health and the Sleep Foundation recommend a bedroom temperature of 65 to 68 degrees Fahrenheit for optimal sleep. A cooler room supports the natural thermoregulatory processes that accompany sleep onset and deeper sleep stages. For perimenopausal women dealing with hot flashes, this is particularly important. If the thermostat has been a point of negotiation, consider this your evidence-based reason to let her win.
Give her Defined Sleep. I created Defined Sleep because the existing options were not solving the right problem. Most sleep aids, including melatonin, primarily reduce sleep onset latency: they help you fall asleep faster. But for mothers whose core issue is fragmented, unrestorative sleep, falling asleep faster does not address the underlying deficit in deep and REM sleep, the stages that drive physical restoration, memory consolidation, immune function, and emotional regulation.
Our FDA-registered, double-blind, placebo-controlled, randomized crossover Phase 2 clinical trial, published in the Journal of Clinical Sleep Medicine and registered at ClinicalTrials.gov (NCT05233761), demonstrated up to a 2x increase in deep and REM sleep. The formulation contains 300mg of high-dosage CBD and natural terpenes. No THC. No melatonin. No reported side effects in the clinical study. It is, as of this writing, the only product with peer-reviewed evidence of improving sleep architecture, not just sleep onset.
A $5 trial is a low-risk way to give her something that might genuinely change how she feels every morning.
She Will Not Ask for This
I want to close with something I have observed repeatedly, both in the clinical research and in the conversations that led me to start this company.
Mothers do not ask for help with their sleep. They ask for help with the dishes, the school run, the grocery list. They frame their needs in terms of tasks, not in terms of their own health. The sleep deprivation becomes invisible because it is so constant that it stops registering as abnormal.
But it is not normal. The science is unambiguous on this point. Chronic sleep deprivation carries real, measurable consequences for cognitive function, immune health, cardiovascular risk, and biological aging. The woman who is telling you she is fine is absorbing those consequences silently, every day.
This Mother’s Day, do not just appreciate her. Protect her sleep. It is one of the most important things you can do for her health, and she should not have to ask.
FAQs
1. How does sleep deprivation affect a mother’s health?
Sleep deprivation can lead to fatigue, weakened immunity, mood swings, and increased risk of conditions like anxiety, depression, and heart issues.
2. Why do moms experience more sleep deprivation?
Moms often juggle multiple responsibilities like childcare, household tasks, and work, which reduces their sleep time and quality.
3. Can lack of sleep affect a mom’s mental health?
Yes, chronic sleep deprivation can increase stress, irritability, and risk of anxiety or postpartum depression.
4. How many hours of sleep do moms need?
Most adults, including moms, need 7–9 hours of quality sleep per night for optimal health.
5. What are the signs of sleep deprivation in mothers?
Common signs include constant tiredness, poor concentration, mood swings, headaches, and low energy.
6. How can moms improve their sleep quality?
Maintaining a consistent sleep schedule, limiting screen time before bed, and creating a relaxing bedtime routine can help.
7. Does sleep deprivation affect parenting?
Yes, it can reduce patience, focus, and energy, making daily parenting tasks more challenging.
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Paul Muchowski, Ph.D. is the founder and CEO/CSO of Defined Sleep. A former UCSF Professor with over 60 published studies in neuroscience, he created the clinically validated CBD + terpene formulation that is the only product proven in a peer-reviewed trial to increase deep and REM sleep.