· Supportive Design: These shredded memory foam pillows queen size set of 2 (19"x28") are filled with a blend of cooling gel-infused memory foam and 3-dimensional hollow fibers, providing firm and consistent support throughout the night. The ergonomic design ensures optimal comfort for all sleeping positions· Thermoregulating Technology: Each cooling pillow features a reversible design with one side having a Q-Max rating of 0.4 for instant cooling upon touch. The bamboo-derived rayon side enhances breathability, keeping you comfortable and cool all night long· Personalized Comfort: Included with each firm pillow is an extra pack of filling, allowing you to adjust the loft and firmness to your preference. Whether you prefer a softer or firmer pillow, you can customize it to suit your needs· Safety Certified: These firm pillows queen size (19"x28") are Standard 100 by OEKO-TEX certified, ensuring they meet the highest standards for safety and are free from harmful chemicals. You can rest easy knowing they are safe for you and your family· Easy Maintenance: To maintain the pillows' volume and shape, gently fluff them and let them rest for up to 48 hours after unboxing. The removable pillowcases are machine washable, making cleaning a breeze. Simply wash in cold water on a gentle cycle and tumble dry on low