The Endy Dual-Comfort Mattress Topper can be used with any mattress to provide extra firmness or softness. Mattress firmness is measured on a scale of 1 to 10 with 1 being the softest and 10 the firmest.
The Soft Side
Placing the mattress topper soft side up will help your mattress achieve a medium feel, making it a 5 on the firmness scale. Medium feeling beds respond to pressure and cradle your hips and shoulders.
The Firm Side
Placing the mattress topper firm side up will help your mattress achieve a firm feel, making it an 8 on the firmness scale. Firm-feeling beds offer more support and stability.