All I can say is that doesn't jibe with our experience. We co-slept for the first 2-3 months, then had baby in a "next-to-me" for a few months, then moved baby

All I can say is that doesn't jibe with our experience. We co-slept for the first 2-3 months, then had baby in a "next-to-me" for a few months, then moved baby to a crib in his own room at 6.5 months. Prior to being in their own room, the baby would usually wake up every 2-4 hours, with the very occasional 6-7 hour stretch. After going in his own room, his sleep began to consolidate and he would regularly last from 7-8pm to 4am without needing resettling. We have friends with a 4 year old daughter who co-slept until now and have just moved her to her own room. She wakes up screaming and needing attention most nights around midnight.