Good morning ladies, I know most don't see this as a "problem" but if your baby was sleeping this long at night would you wake them for a feed? I don't know whether I should be waking him for a feed at about 12 or just leaving him to sleep like I have been? He has been sleeping through ever since he had his jabs on Wednesday and doesn't really sleep in the day apart from a couple of 30 min light naps.
DS was the same and slept through from 3 months. This was a few years ago but the HV said not to bother about waking him for a feed as he was a good weight and he'd let us know if he was hungry. He continued to gain weight as he should despite stopping a night time feed and 6yrs on he is still a fab sleeper if you ignore the silly 5:30am wake up phase he had as a pre-schooler.
How much does he feed in the day? Mine started sleeping through at the same age, I just grabbed the opportunity for an evening to myself and decent sleep with both hands. If he's eating enough in the day (ie gaining weight) it's fine, I think if he was hungry he'd wake and let you know.
Dd was like this - at 12 weeks she slept 9pm-9am she's 4,5 months now and doesn't quite do 12 hrs (woke at 4am and 5.30am but went back to sleep both times) and generally wakes at about 8am and I worried about it too! Needless to say she's fine. On the occasions she wakes earlier and I feed her, she always goes back to sleep to 8am/9am so I just decided that was obviously when she wanted to wake up!
(Btw she is ff but has always been a snacky feeder - even now she only goes 3.5 hrs max in the morning and 2.5 hrs in the afternoon between feeds and never finishes a bottle)
My dd slept through from about 9 weeks. I would often 'dreamfeed' her before I was going to bed about 11/11.30 as I felt it was too long a stretch to go without. I guess in theory if she was hungry she would wake anyway but I suppose it done no harm. If your dc is feeding plenty in the day then all sounds fine!