Is sleeping in makeup really that bad? What's a good cleanser?

From what I heard, yes, it's not good to sleep with your makeup on. You have to wash your face with a makeup remover to cleanse your skin before sleeping. There are several brands recommended - Sephora, Neutrogena, L'Oreal to name a few. You can check out this site for more brands https://beautymnl.com/t/makeup/category/face/makeup-remover