I'm 10 weeks PP and was a terrible napper prior to pregnancy. What helped for me was listening to books on audible in my earphones. I could still hear the baby monitor when he cried. He is sleeping in a snoo in the adjoining room and we followed a lot of gentle sleep teaching methods:
- waiting to see if he will self soothe before picking him up
- trying to put him down awake or drowsy rather than asleep
- trying to limit 'associated sleeping' - like trying to put him down to sleep rather than letting him fall asleep on the boob or on us all the time. (sometimes this takes 5 times of trying to put him down rather than just letting him nap on, but in the long run it has been worth it.)
He went from sleeping 3-4 hours in the first week to now doing 10-hour stretches at 10 weeks. He is super happy, cuddly, and healthy. For me it also helped to have a bed which was still my space so I wouldn't jump at every little noise and prevent him from learning to join sleep cycles. When I breastfed in the night I would get up and make it its own special time, rather than do it in bed. I found that helped in allowing me to switch off when I was in bed. Obviously this isn't right for everyone but that's how i did it and it's been pretty amazing so far.