Silk
From Amazon
Slip Silk Pure Silk Queen Pillowcase - Peony - Pure 22 Momme Mulberry Silk Pillowcase - Breathable and Hypoallergenic Pillowcases for Hair and Skin Health
Cosmetify
Slip Silk Queen Pillowcase Peony
Harvey Nichols
Slip Pure Silk Queen Pillowcase - Peony