No bumps in the nightthis snuggly-soft crib rail cover protects baby in his crib. Fleece crib rail covers come in a set of 2, each measuring 27"L x 18"W with 6.5"L ties, and fit crib rails 8"-18". Covers are lightly padded in the middle for protection and teething, made of safe, non-toxic materials, and have waterproof backing. Simply tie on to any size crib. Machine washable. Polyester. Sage.