Could someone tell me precisely how to layer clothes to stay warm in winter? (not including coats)

I need you to describe to me like I'm 5 what clothes you would layer on top of each other for wearing indoors during winter. I'm sick of just wearing jumpers all winter. My house is freezing. I'm thinking like turtle necks with a cardigan over. Please help me come up with ideas. This doesn't include coats and scarfs. Thank you