Of course as with all pillowcases and duvets it is important to consider the fabrics and quality of the materials. Cotton is a material that has been used in bedding and clothing since the days of ancient Egypt, as a natural material it is a lot cooler and has a greater degree of breathability than some man made fabrics like polyester.
As a byproduct of the petrochemical industry, polyester is more durable than cotton based fabrics, however it is a lot less breathable, trapping more heat which can make it less comfortable in warmer climates as a bedding material.
Here are some handpicked camo pillowcases with their fabric makeup for you to decide:
Size:
51x92cm / 20x36in
Materials:
50% Cotton / 50% Polyester
Price:
$12.99
Size:
45x45cm / 18x18in
Materials:
100% Polyester Blend
Price:
$7.99