My 5mo has started sleep talking / babbling. She's definitely asleep / not waking up for a quick chat. I don't mind, it's quite cute and once I give her a dummy she sleeps quietly. She's always slept very well and isn't tired in the morning so I'm not worried. She babbles all day too so maybe her brain just does it during sleep too? Has anyone else experienced this? I can't find anything online about young babies sleep talking.