The Tempur mattress topper is an excellent choice.
Comfort and firmness
Like the Tempur mattress, the Tempur mattress topper offers exceptional quality.
It adapts well to the contours of the body and offers a superior level of comfort and support. It also offers the same pressure-relieving properties that the mattresses are famous for, meaning that you can enjoy a relaxing and restful sleep without aches and pains.
The topper is 7 cm thick.
As a memory foam topper, it offers that body-hugging feel that memory foam is known for. While most people enjoy the sensation, it does make movement more cumbersome and is not for everyone.
That said, your weight does affect how deeply you sink into the topper.
In general, it is impossible to give a topper a distinct level of firmness as it depends largely on the mattress it is placed on top of. The aim, though, is to make a firm mattress softer. The Tempur mattress topper definitely provides a soft and comfortable feel.
Some mattress toppers have cooling properties, though, in general, they increase the sleeping climate. This is especially true of memory foam toppers like the Tempur one.
If you prefer a cooler sleeping climate, then this is not the topper for you.