Slumber Solutions 4-inch Memory Foam Mattress Topper with Waterproof Cover, Size Twin

• Density: 3 pounds, Temperature-sensitive memory foam provides the ultimate in comfort and pressure point relief, Circular polyester knit fabric features an air-permeable backing material that serves as a moisture barrier
• Breathable laminate backing material offers moisture control preventing fluids from penetrating the surface of the mattress topper, Gently cradles your body
• Naturally hypoallergenic to provide a healthier sleep environment, Cover offers 3-inch gusset with decorative cord edge and a stretch-to-fit 17-inch contour skirt, Meets all flammability standards, Care instructions: Spot clean
• Memory Foam Do's and Don'ts: Remove from packaging within 72 hours of receipt, Product arrives tightly packed. Please unwrap and allow 48 hours for product to return to its original shape, Being sealed in plastic packaging sometimes traps odors. A few hours of airing usually removes the odor, Due to machine cutting manufacturing processes, there may be slight variances in the dimensions of this product.
• Dimensions: 37 inches x 73 inches,, Materials: Polyurethane Foam, Model No: 10084-0026

My grandson's mattress has gotten too old. I purchased this topper to help. It came all rolled up; but after a couple of hours, it unrolled nicely. It fit his twin bed perfectly.

When I need another one, I will definitely purchase one again. It is very comfortable.