I don't have any amazing advice but will share that I coslept with all three of my girls until the next baby came- now they sleep with each other. I had c sections and it seemed easier on my recovery and just became the easiest situation. What I've read about the dangers are if the adult is overtired- like works multiple jobs, shifts, is lackin major sleep, had drank alcohol or on a drug even prescription- then don't allow cosleeping. Don't cosleep on a sofa where the baby could get wedged in the pillows or use too many pillows or heavy blankets in the bed with a newborn. I take precautions like these and have never had a problem. Read a book on it to get more tips.
Parttime homeschooling, blessed mama of one baby boy and three little girls, 2,4,6.