There are several types of mattress protectors, each designed to address specific needs. Here are the main types: Waterproof Mattress Protectors: These protectors are made with a waterproof layer, typically made of vinyl, polyurethane, or TPU (thermoplastic polyurethane), to shield the mattress from spills, stains, and moisture. They're ideal for people with children, pets, or those who want extra protection from accidents. Allergen-Proof Mattress Protectors: These protectors are designed to block dust mites, pollen, and other allergens from entering the mattress. They typically have a tight weave or use specialized materials to create a barrier against allergens, making them a good choice for people with allergies or asthma. Cooling Mattress Protectors: Made from breathable, moisture-wicking fabrics like cotton, bamboo, or specialized cooling materials, these protectors help regulate body temperature by drawing heat away from the body. They are great for people who tend to sleep hot. Quilted or Padded Mattress Protectors: These protectors add a layer of cushioning to your mattress, providing extra comfort and softness. They often have a quilted or padded design, which can help extend the life of an older mattress or make a firm mattress feel softer. Fitted Sheet Style Mattress Protectors: These protectors are designed like fitted sheets and are easy to put on and remove. They may or may not be waterproof, and they are often made of cotton or polyester. They provide a basic layer of protection against dirt and dust. Zippered Mattress Protectors: These fully encase the mattress with a zipper closure, providing complete protection on all sides. They are especially effective at blocking dust mites and allergens. Zippered protectors are typically made of waterproof or allergen-proof material. Anti-bacterial Mattress Protectors: These protectors are treated with antimicrobial properties to prevent the growth of bacteria, mold, and mildew. They're a good choice for people who are concerned about hygiene and cleanliness.