When I did a google search, this is the description:
Peachskin fabric is 100% polyester, 58” wide and has a soft fuzzy-like texture. Peachskin is uniquely manufactured by brushing the fabric's polyester microfibers to give the fabric a soft suede-like feel and a subtle ribbed appearance
With that in mind, no I would not use it in the same quilt as 100% quilting cotton.