I’m struggling so much with lack of sleep. I have a 4 year old whose only just sleeping through the night, does wake up occasionally but sleeping better. My 9.5 month old wakes up about 3 times a night, he just screams, don’t remember my eldest doing that. Once I give him milk he falls back to sleep but I don’t, so I get around 2 hours sleep a day if that. Going back to work in a few weeks and can’t survive. Any tips on how to solve his sleeping problems. Also why do they wake up screaming? I’ve never had that before, crying yes but not screaming.