**For a newborn, sharing the parents’ room on a separate infant sleep surface is the recommended arrangement. Calling a separate bedroom “psychological abuse” goes beyond what the evidence establishes.** Your question brings together sleep safety, emotional attachment, and cultural expectations about parenting.

The safety issue is fairly clear. The American Academy of Pediatrics recommends room sharing for **at least the first six months**, with the baby in their own crib or bassinet. Room sharing is associated with a lower risk of sudden infant death syndrome (SIDS) and makes feeding and comforting easier. Place the baby on their back on a firm, flat surface, with no pillows, loose blankets, or soft toys. Sharing an adult bed carries additional risks. [AAP safe-sleep guidance](https://www.healthychildren.org/english/ages-stages/baby/sleep/pages/a-parents-guide-to-safe-sleep.aspx)

The psychological question concerns **how caregivers respond to the child over time**. Warm, dependable, responsive relationships support development. A bedroom arrangement alone tells you little about whether a child receives that care: parents can respond promptly to a baby in another room, and a baby sleeping nearby can still experience neglect. Attachment research supports responsive relationships; it does not establish a requirement for continuous physical contact. [Harvard’s explanation of responsive relationships](https://developingchild.harvard.edu/key-concept/serve-and-return/)

Age matters here. Newborns need frequent care, and the AAP advises responding promptly to crying during the first few months. Evidence about sleep interventions in older infants cannot simply be applied from birth. For example, a **2016 randomized trial involving 43 babies aged 6–16 months** found improved sleep with two behavioral approaches and no significant differences in attachment at follow-up. Its small sample limits certainty, and it did not test newborns sleeping in separate rooms. [Gradisar and colleagues](https://pubmed.ncbi.nlm.nih.gov/27221288/)

The cultural disagreement partly reflects different ideas about what good parenting should accomplish. Some families see early separate sleeping as a step toward independence and a way to protect parents’ sleep. Others see nighttime closeness as an ordinary expression of care and belonging. Research on Japanese mothers illustrates how sleeping arrangements connect to values about family relationships and mothers’ roles, including disagreement within the same culture. These are tendencies, not rules that describe every family. [Study of Japanese mothers’ sleeping arrangements and values](https://pubmed.ncbi.nlm.nih.gov/25191281/)

My interpretation is that these customs become morally charged because people treat their familiar arrangement as evidence of love or competence. Someone who associates closeness with safety may interpret separation as abandonment; someone who values early independence may interpret prolonged sharing as a problem. Those interpretations need evidence before becoming claims about harm.

The broader advice you mention also deserves scrutiny:

- **Comforting a young baby:** supported. Babies need help managing distress.
- **Never disciplining a child:** depends on what “discipline” means. Pediatric guidance recommends calm teaching, consistent limits, and age-appropriate consequences. It discourages hitting, humiliation, and harsh yelling. [AAP discipline guidance](https://www.healthychildren.org/english/family-life/family-dynamics/communication-discipline/pages/disciplining-your-child.aspx)
- **Unconditional sacrifice of parents’ health:** not a sound general requirement. The AAP explicitly encourages rest, help from others, and a brief break with the baby safely in their crib when a caregiver becomes overwhelmed. [AAP guidance on responding to crying](https://www.healthychildren.org/english/ages-stages/baby/crying-colic/pages/responding-to-your-babys-cries.aspx)

For a family making this decision, the practical starting point is room sharing with a separate crib for the first six months, responsive care, and shared caregiving that protects parents’ ability to function. Later sleeping arrangements can take account of the child’s needs and the family’s circumstances.