The recommendation in the US is to have infants sleep in the same room in a bassinet. Then moving to a crib, often in a separate room, around 4-6 months.
Co-sleeping is also somewhat popular, but it greatly increases the chance of SIDS with risks skyrocketing for smoking mothers and those who are bed-sharing but don't usually do bed-sharing.
Co-sleeping is also somewhat popular, but it greatly increases the chance of SIDS with risks skyrocketing for smoking mothers and those who are bed-sharing but don't usually do bed-sharing.
https://www.ncbi.nlm.nih.gov/pmc/articles/PMC2065975/