I learned early in our marriage that sharing a flat sheet and blanket was not going to work. We have a king size bed so we use a fitted sheet and we each have a twin sized flat sheet and blanket! The best thing we ever did :)
Co-sleeping reality. Aka why my babies will sleep in their own damn beds. Additionally, I'd say the only co-sleeping position not depicted here is the one picturing the parent having rolled onto the child.