Experience dry, cool comfort with the Serta 5 in 1 Mattress Pad. This mattress pad is designed to keep you comfortable throughout the year, with features that promote a cool and dry sleeping environment. Let the allergen barriers and microbial fibres help with sensitive sleepers ensuring the right amount of protection under the sheets. This mattress pad also has Stain release technology, fits mattress up to 18" Hypoallergenic Waterproof Protection Moisture Wicking Allergen Barriers Antimicrobial Machine Washable Stain Release Technology