I'm planning to yell loudly while my baby sister sleeps.
That's really mean. What makes you think it's okay to disrupt your baby sister's sleeping?
Never mind I won't do that
Some babies are more sensitive to things around them, so they may react more to loud noises. Babies need more sleep because they have so much new information to process, and are also growing and developing at a fast rate.
It's not cool to disrupt babies and all. I need to read more on this
I'm glad you are going to do something about it. It's important to respect those who are sleeping.