The amount of sleep that a 2-year-old child needs can vary depending on factors such as their individual needs, their activity level, and their overall health and well-being. In general, most 2-year-olds need between 11 and 14 hours of sleep per day, including naps. If your 2-year-old goes to sleep at 10:00 pm, they will likely get enough sleep to meet their daily needs if they are waking up not earlier than 9 -10 am every day and have 1-2 hour nap during the day. However, it's important to keep in mind that every child is different, and the best bedtime for your child may be slightly earlier or later than this. It's also important to establish a consistent bedtime routine that includes quiet activities, such as reading or listening to calming music, to help your child wind down and prepare for sleep. This will help ensure that they get enough restful sleep and wake up feeling rested and ready for the day.