Never have done this aside from when he was tiny
I stopped doing this after like 3 months and my baby’s been fine
I feed my son side lying anyway so never really kept him upright after a feed at night. He’s been fine, not a sicky baby anyway though
I do this in the day but not in the night, just burp and back to bed
Didn’t do it past 3 months x
Please don’t stop. It very important to keep them straight up otherwise they will vomit the milk and may even have difficulty breathing in that moment.