FTM to 8 week old who was born via CS 3 weeks early due to suspected low gestational weight and static growth (stopped growing at 36 weeks). So although 8 weeks old, corrected she's more like 5. Not sure if this is relevant in case we're experiencing developments a little later.
She is now doing around 4 hour stints at night, having her last feed at 11ish and waking up around 4ish for a feed. She will burp relatively quickly and go back down but is VERY crackly / snuffly once back down. She also grunts loads and loads, but seems to be sound asleep whilst doing both these things. She's not like this in the day as tends to contact nap and therefore isn't on her back.
My question is: would you use saline drops / snot sucker / burp again even though she seems happy asleep? The mucus is throaty so not sure a snot sucker would even work. Saline drops would startle / wake her, but the crackling and grunting sounds so bad! Is it harmless and one of those things she'll work out of her system?
Thanks!