Baby cannot sleep in aircon room

If ur baby is a newborn less than 3 mo, baby is likely still regulating her body temp. Even when the aircon seems warm for us, it may still be cold for babies despite being swaddled. My baby also used to sleep better without aircon, but I reckon cld also be the fan sound, it's like white noise for him. Over time he got used to sleeping in aircon, and cld sleep longer by his 2nd month.

She may have breathing issues? Sinus? Aircond air a bit dry so maybe she don’t feel comfy. You can try a dehumidifier or essential oils