Co-sleeping and infant sleep

Sleep is crucial for maintaining mental health and brain metabolic function.

Worth exploring

Couples.

Sourced from the doctors, PhDs and clinicians behind Entrain. Updated

The strongest voice

“Sleep is crucial for maintaining mental health and brain metabolic function.”

a Harvard Medical School psychiatrist specializing in metabolic psychiatry · Instagram

In their own words

One faithful sentence per source, linked to the moment it was said; quiet chips mark where money is involved.

an attachment coach and former licensed marriage and family therapist conditional
“Sleeping face-to-face all night is a myth; instead, five minutes of spooning before sleep releases oxytocin and melatonin, improving sleep quality especially for women.”

an attachment coach and former licensed marriage and family therapist · Instagram

an attachment coach and former licensed marriage and family therapist recommend
“Avoiding a pillow barrier between partners during sleep helps maintain nighttime touching and bonding.”

an attachment coach and former licensed marriage and family therapist · Instagram

a Harvard Medical School psychiatrist specializing in metabolic psychiatry recommend
“Sleep is crucial for maintaining mental health and brain metabolic function.”

a Harvard Medical School psychiatrist specializing in metabolic psychiatry · Instagram

a Harvard Medical School psychiatrist specializing in metabolic psychiatry recommend
“Restorative sleep should be achieved without the use of substances such as alcohol, marijuana, sleeping pills, or melatonin to support brain and body health.”

a Harvard Medical School psychiatrist specializing in metabolic psychiatry · Instagram

a Harvard Medical School psychiatrist specializing in metabolic psychiatry recommend
“Prioritizing sleep by going to bed early and waking without an alarm supports brain energy and mental health.”

a Harvard Medical School psychiatrist specializing in metabolic psychiatry · Instagram

a psychoanalyst and author of Being There recommend
“Healthy mothers should co-sleep with their babies for at least the first three months because mothers regulate babies' stress levels and heartbeats, supporting neurological fragility.”

a psychoanalyst and author of Being There · Instagram

a psychoanalyst and author of Being There against
“Parents who are drug addicts or alcoholics should not co-sleep with their babies due to increased risks such as infant deaths.”

a psychoanalyst and author of Being There · Instagram

a psychoanalyst and author of Being There against
“The Cry It Out method asks babies to adapt to adult convenience instead of adults adapting to babies’ needs and raises babies' cortisol levels beyond their ability to process stress, prioritizing parents' comfort over children's comfort.”

a psychoanalyst and author of Being There · Instagram

a psychoanalyst and author of Being There against
“The court system's 50/50 custody paradigm treats splitting custody like dividing a sandwich, ignoring the developmental needs of breastfed infants and primary attachment figures.”

a psychoanalyst and author of Being There · Instagram

a mental health counselor and author against
“Disregulated sleep patterns are very unhealthy and make it impossible to have cognitive clarity, signaling serious mental health struggles.”

a mental health counselor and author · Instagram

a mental health counselor and author conditional
“Getting a diagnosis and a treatment plan, including medication and sleep-oriented interventions, can help address sleep-related violent behaviors.”

a mental health counselor and author · Instagram

a social psychologist and NYU Stern professor recommend
“No screens of any kind in the bedroom ever is the rule I wish I'd had with my kids and the first and most important rule parents should insist on.”

a social psychologist and NYU Stern professor · Instagram

a personal trainer and health coach recommend
“Shifting your sleep schedule on weekends causes a form of self-inflicted jet lag that disrupts circadian rhythm and negatively impacts metabolism, hormones, and recovery.”

a personal trainer and health coach · Instagram

a personal trainer and health coach against
“Going to bed late on Friday and Saturday nights and sleeping in disrupts your circadian rhythm repeatedly each week, leading to prolonged negative effects beyond just feeling tired on Sunday.”

a personal trainer and health coach · Instagram

a personal trainer and health coach recommend
“Trying 30 days of going to bed and waking up at the same time can have a profound positive impact on sleep quality and overall feeling.”

a personal trainer and health coach · Instagram

a mental health counselor and author conditional
“Getting a diagnosis and appropriate sleep-oriented interventions, including medication, can help manage sleep-related violent behaviors.”

a mental health counselor and author · TikTok

a mental health counselor and author recommend
“It is important to get help, make a safety plan, and decide to be on the same team to promote healing and safety after sleep-related violence.”

a mental health counselor and author · TikTok

a mental health counselor and author recommend
“Recognizing that the person who caused harm during sleep is not at fault and that both parties experienced the event together helps in emotional healing and maintaining the relationship.”

a mental health counselor and author · TikTok

a Harvard Medical School psychiatrist specializing in metabolic psychiatry recommend
“Good restorative sleep should be achieved without substances like alcohol, marijuana, sleeping pills, or melatonin to maintain health.”

a Harvard Medical School psychiatrist specializing in metabolic psychiatry · source video

a mental health counselor and author recommend
“Committing to turning off phones after work and aiming for 7 hours of sleep helps regulate brain function and reduce anxiety symptoms.”

a mental health counselor and author · source video sponsored

a social psychologist and NYU Stern professor against
“70% of children are not getting enough sleep, which is a major concern linked to screen use and overall health.”

a social psychologist and NYU Stern professor · source video

a clinical psychologist and Professor Emeritus of psychology recommend
“Sleep is foundational for mental and physical health, requiring a consistent nighttime routine to function at one's best.”

a clinical psychologist and Professor Emeritus of psychology · source video sponsored

Worth discussing with your GP, especially if you take medication or are pregnant. Entrain describes what is publicly taught; it does not prescribe.

Journaling and self-authoring

If you have a good idea, write it down because it is a gift that could change your whole life and forgetting it could prevent progress.

Strong consensus

“If you have a good idea, write it down because it is a gift that could change your whole life and forgetting it could prevent progress.”

a clinical psychologist and Professor Emeritus of psychology · TikTok

Metabolic psychiatry and brain energy theory

Mental illnesses are symptoms of metabolic dysfunction affecting the whole body and brain, not just isolated brain problems.

Strong consensus

“Mental illnesses are symptoms of metabolic dysfunction affecting the whole body and brain, not just isolated brain problems.”

a Harvard Medical School psychiatrist specializing in metabolic psychiatry · Instagram

EMDR and trauma processing

He discusses new ways to treat anxiety, OCD, and PTSD by focusing on brain metabolic health rather than only symptoms.

Strong consensus

“He discusses new ways to treat anxiety, OCD, and PTSD by focusing on brain metabolic health rather than only symptoms.”

a Harvard Medical School psychiatrist specializing in metabolic psychiatry · Instagram