Being memory foam, won't it make me too hot? Simba - Odyssey January 23, 2018 13:46 Follow Good question! The cover allows the pillow to breath and the natural air holes ensure air flow throughout the pillow. Related articles Can I expect any softening over time? What size is the pillow and will my pillowcase fit? Where can I buy and test a Simba Hybrid® mattress? How firm is the pillow? How long does the Aloe Vera last?