Most options are 100% cotton, with many listings specifying 100% organic cotton. Both woven and jersey fabric constructions appear in this category.
Sizes vary by listing. Common examples include about 13 × 18 inches (often shown as 18" L × 13" W), 14 × 19 inches, and at least one option listed as 20 × 14 inches (shown as 14 × 20).
Closures include inner envelope (zipper-free) styles, end closures, and some listings show no closure at all. Options vary by product.
Care instructions vary but commonly recommend machine washing. Drying directions include line dry or lay flat and tumble dry on low. Some listings advise gentle or cold cycles and cool ironing; avoid bleach when specified.
Descriptions emphasize soft, breathable cotton that’s gentle on skin and wicks moisture for comfortable nights. Some listings describe the fabric as soft and cozy for both warm and cool nights.