My Cardinal has window tinting as well as day/night shades. Even with all that it's still pretty bright in the camper during the bright summer early mornings. To combat brightness in our bedroom my wife made some blackout curtains. We found some black fabric at a fabric store that we held up to the store lights to make sure no light got through. She sewed some hook & eyes into the fabric and onto the fabric valances above the window. We also made a cover for our bedroom vent using Velcro to help attach it to our vent frame. It's very dark in our bedroom now and nobody can see through the windows.