barely any sleep

its amazing how us moms can get through the day with such little sleep. I have not had more than 3 hours of sleep a night in more than 3 weeks but i still get up every morning make my toddler breakfast, give my lo his breathing treatment and do everything else i have to do during the day. i am so over tired but i am a mom and thats what we do and i keep telling myself eventually my 4 month old will sleep more than an hour at a time im really hoping at least.