Girls ? The last 5 days, I forgot what sleep is ?? The baby sleeps 1.5…

Girls ? The last 5 days, I forgot what sleep is ?? The baby sleeps 1.5 hours during the day... Bedtime at 9:00 PM And he can wake up in 2-3 hours and walk until morning, he used to sleep until morning too, now the schedule changed, on top of that I'm exhausted from being tired, I'm struggling with older kids ??