my daughter is one month and 3days old. she haven't sleep since today morning. is it a case to worry.

A. Usually at thsi age babies sleep most of the time. Keep monitoring. Check tomorrow. its's quite normal in newborns .That's how they function. It's nothing to worry. After few months they will start to follow a sleep routine. Follow a sleep pattern ensure to put your baby to sleep at the same time every day. Feed a little more during night hours for good sleep.