ugh
Insomnia just point blank sucks. Those who don't struggle with it or who have never struggled with it don't understand and they say things like, "Why can't you just sleep?! What's keeping you awake? Well, if you'd do this or that, then maybe you wouldn't have so much trouble sleeping." For many it's simply not that simple.
I truly believe lack of sleep is a big contributor to post-partum psychosis.