Does the Chirofoam actually sleep cool, or does it run hot?

It rates 8.6/10 on cooling with a measured peak near 29.9 C, cooler than most beds, but be realistic: there is no specialty cooling cover here, so the effect is structural, not a cold-to-the-touch fabric. A breathable cotton-and-denim top vents heat while the 1000-coil core moves air instead of trapping it like solid foam. Very hot sleepers expecting an icy gel feel may notice it runs neutral rather than actively cold; it manages heat well without overpromising.