DD2 is 13 weeks old and wakes very frequently at night - she will go down in her crib for between 20-90 mins at a time. When she wakes, she doesn't want a feed (she's breastfed) and she is fairly easy for DH to settle back to sleep so I do know we're lucky in that regard. But we're really starting to struggle with the frequent waking. When she's sleeping on someone (nighttime or daytime), she can go for hours.
I don't think it's an early 4 month sleep regression because tbh she's never been better than this, but I could be wrong? Until about 8 weeks she wouldn't go in the crib for more than 5 mins and had to be held a lot overnight.
Is there anything we can do to extend some of her sleep?
For various reasons, I really really do not want to co sleep.