Does this mattress sleep cool even without a cooling cover?

It runs cooler than most beds through airflow rather than a cooling-treated cover, scoring 8.4 out of 10 with a measured 29.9 C peak surface temperature. The breathable cotton top with denim borders vents heat, the comfort layer is only an inch thick so it stores little warmth, and the 1000-coil pocketed core lets air move through the bed instead of trapping it in solid foam. The 1-inch foam itself is gel-infused. It keeps shedding heat overnight.