Sun is not an issue there. It opens onto a deck that has a roof over it and faces North. When Spring comes, they will come down and be stored for next winter. I am not too concerned about them fading.
They are also "lined" with a sheet for backing and batting inside. they are pastel colors so some light does filter through.
A comment about giving quilts as gifts to family members. I have only given quilts to those who have expressed their desire to have a quilt that I have made. As far as the charity quilts, I know they go to disaster areas and can be put to good use.
We give quilts out of love and I guess that counts for something. I know most of you make quilts with lots of love stitched in the seams!
June