Here are some other common fabric types used in cow bedding set besides cotton blends:
Percale
Fine cotton weave that is crisp and breathable. More durable than sateen.
Sateen
Softer cotton weave with subtle sheen. Prone to wrinkling but very smooth.
Linen
Natural fiber with airy, wrinkle-prone texture. Excellent at warming in winter, cooling in summer.
Bamboo
Naturally smooth and soft fabric derived from bamboo. Hypoallergenic and temperature regulating.
Microfiber
Very inexpensive synthetic fabric. Feels soft but less breathable than natural fibers.
Polyester
Affordable and quick-drying synthetic, less breathable. Often blended with cotton.
Tencel/Lyocell
Plant-based fiber derived from wood pulp. More eco-friendly than polyester, very soft.
Modal
Luxurious rayon fiber made from beech trees. Similar to cotton but stronger, more wrinkle-resistant.
Silk
Extremely soft and luxurious natural fiber but high maintenance and expensive for full bedding sets.
Wool
Naturally temperature regulating, cozy fabric good for winter but pricier and possibly itchy.
So in summary, cotton, linen, bamboo and cotton/polyester blends are very popular fabric choices.