Waterproof: It features an internal waterproof membrane that keeps liquids away from the mattress of the crib, bassinet, or changing table. It protects against leaks and is easy to clean.
Flannel: Fluffy, warm, soft fabric. The classic choice for the winter months
Pique: Embossed, honeycomb weave (like a light blanket). Provides stability, does not slip easily, and is ideal for spring and autumn.