My baby is not sleeping well.. He barely sleeps for 11-12 hours a day.. What should I do to improve his sleeping habit

A. But 11 to 12 hours as you are mentioning is very very good you cannot expect your child to sleep as per how we want the schedule to be 8 to 10 hours minimum in a day is just good enough your child is sleeping for 11 to 12 hours which is extremely good