"Simmons Beautyrest Cotton Cover Latex Pillow" - Not to hard, not to soft. Feels like sleeping on someones belly - they have a very human feel. They also remain pretty cool due to channeled vent holes. http://www.amazon.com/gp/product/B000BI5HGS/ref=oss_product
For some reason, this latex pillow on Amazon came up as well: https://www.amazon.com/Beautyrest-Latex-Foam-Pillow-Standard/dp/B000BI5HGS