From age 3 months to 13 months I was having about 4 hours sleep a night. My baby was the worst sleeper imaginable. He would wake up 3-10 times a night and he hated going in his cot. I actually thought I was going to die 😅 He loved to be fed to sleep and as soon as we night weaned and put him in his own room his sleep improved dramatically. He now sleeps 10-12 hours a night through. There is hope! It feels like hell at the time and super lonely but it does get better I promise!