sleepless nights

hi mummies! is any of you having sleepless nights due to baby sleeps at 5-6am in the morning? how do you cope , especially when you’re working in the morning? my 2 year old sleeps at 10pm for a nap , that last for 2 hrs . ans then she wokes up at 12-1am to play till 6am. :( tough days for mummies like me :(