A premium mattress protector made with breathable polyethylene fabric and phase-change materials for cooling effects. Protects your mattress against spills and accidents without the crinkly plastic feel of typical protectors. Waterproof protection with breathable fabrics and less heat retention Soft, comfortable surface that preserves your mattress feel Machine washable for practical, everyday use Compatible with mattresses 10" to 14" in height, including the Boring Hybrid and AF