We're trying to plan-- I'm having a c-section in two days, and my son slept in the rock n play until he was 4 months old. He did develop somewhat of a flat head though, and I've been reading a lot of other babies have had major problems with this-- so I want to explore alternatives. I know it depends on the baby, and we're going to try the pack n play first-- but if you have any other suggestions, would love to hear it!