I'm slightly overwhelmed by the amount of different types of sleep positioners out there of varying types and I don't know which is best! There seem to be some that are just blocks to stop them rolling over, some with memory foam pillows to help stop them getting flat heads and some that keep them on their sides. Part of me was tempted to go for the one that keeps them on their side as the flat head thing has only been an issue since they changed the guidelines to babies sleeping on their backs my midwife said at antenatal classes plus if they are sick in the night I'd have thought them being on their side is better than being flat on their back. HELP!!! Any advice as to what you use or what you think is best would be much appreciated as I am so confused by it all.