Co-sleeping is not inherently wrong and does necessary cause problems as long as the child is healthy and over 18 months of age.
Baby Sleeping On Stomach: Risks And When It's OK
Back-to-school Sleep Tips for Kids l CMHA National
A question to keep parents up at night: whether to allow their children into their bed, Parents and parenting
All About Co-Sleeping with Your Toddler
How to stop co-sleeping: An age-by-age guide - Today's Parent
71% of parents believe co-sleeping with children should be normalized rather than stigmatized - OnePoll Research
Get Kids to Fall Asleep Children's Hospital Colorado
Co-sleeping with babies Raising Children Network
Co-sleeping or bed sharing with your baby: risks and benefits, Baby & toddler, Your child's development articles & support
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Room sharing with your baby may help prevent SIDS, but it means everyone gets less sleep - Harvard Health
9 Tips to Help Toddlers Sleep On Their Own
Sex and Cosleeping: How Old Is Too Old for Kids in the Bed?
My child wants to co-sleep - Children's National