The Serta Cool Crystal Mattress Pad offers cool-to-the-touch fabric and wicking technology to help keep you cool, dry and comfortable. The Supraloft™ Pure Fiber provides comfort and moderate support while you sleep. Skirt will fit up to 18” deep mattresses.Features: CoolingBedding Construction: Box StitchManufacturer Warranty: 3 Year LimitedThread Count: 250Bed Size: TwinFill Weight: 10 oz. of FillMeasurements: 75 Length/Inches, 39 Width/InchesMattress Depth: Up To 18 In DeepBase Material: 50% Nylon, 50% PolyesterFilling Content: 100% PolyesterCare: Machine WashThickness: Thickness Not ProvidedComfort Level: BasicProtection Level: ModerateMattress Securing: SkirtMattress Pads & Toppers Type: Mattress PadsCountry of Origin: Imported Serta Cool Crystal Mattress Pad