Model: Firm Size: 4 inches thick 39 x 79 inches Material: density foam Package includes: 1 x density foam mattress topper Product description A density foam mattress topper that adds a firmer, supportive comfort layer to your mattress. Designed to improve the feel of an existing mattress, this 4 inch thick topper provides balanced support and a more comfortable surface without replacing your mattress. Key benefits Add comfort and support: density foam conforms to body contours to provide even support across the sleep surface, making a firm or older mattress feel more comfortable. Durable construction: Made from quality density foam for long lasting use and consistent support night after night. Easy setup: Arrives rolled and compressed for . Unbox, remove packaging, unroll onto your mattress and allow up to 48 hours for full expansion. Extends mattress life: Adds an extra layer that helps protect the mattress surface from wear and preserves the underlying mattress for longer use. Compatible placement: Place the topper on of your mattress and under your existing mattress cover or fitted sheet. How it works The density foam closely follows body curves to distribute weight more evenly across the surface. This creates a smoother, more even feel that reduces localized sinking and improves overall sleeping comfort. Use scenarios Soften a toofirm mattress in a master or guest bedroom without buying a mattress. Refresh an aging mattress in a rental property, dorm room, or guest room to provide a better sleep surface for visitors. Add a comfortable layer to a mattress used in an RV, cabin, or temporary sleeping setup for improved rest while traveling. Product care and setup Unbox and unroll the topper in a well ventilated room. Allow up to 48 hours for full expansion before first use. Use a mattress protector or fitted sheet over the topper for added protection and easier cleaning. Specifications Firmness: Firm Thickness: 4 inches Size: 39 x 79 inches Material: density foam This density foam mattress topper provides a practical, cost effective way to improve mattress comfort and longevity while keeping setup simple and maintenance straightforward.