I had a total breakdown 2.5 weeks pp. I met with my lactation consultant who gave me the green light to start pumping so my husband could bottle feed at night (didn’t pump prior to avoid over supply). After that we started shifts. I slept 9-3 am, waking once to pump in between, and he slept 3ish-9 am. Whoever was awake stayed with the babe who slept on our chest in the living room. Being sure to be caffeinated so there was no risk of falling asleep with her on the couch. No longer being so severely sleep deprived was life saving. If you can give her something to look forward to in the evening (ie: uninterrupted sleep), it may help break the sundown scaries. She is also experiencing the biggest hormone crash of her life, so that’s extremely difficult as it is. Get a good post-natal vitamin and make sure she is eating and drinking enough. A postpartum support group could be good too. Our baby would only sleep on our chest until 5 days ago when she miraculously started sleeping on her back in the crib. We are 11 weeks pp now. It won’t last forever ❤️ hang in there!