This Sleep Wellness Pillow is filled with millions of micro air balls that allow the pillow to adjust to your head and neck in any sleeping position. The pillow will return to its original shape when not in use and will be preserved even after several years! Feel refreshed when you wake up! The Good Sleep Wellness Pillow is so well ventilated that it doesn't make you hot or sweaty and keeps your head dry while you sleep. You may not feel the need to rush to the shower and wash away excess sweat if it's something you normally do. This sleeping pillow can be used for a long time without cleaning, as a result, our skin will not be damaged. Both machine and hand washable, it is convenient for the user to sleep in clean conditions and effectively inhibit moisture production and others that cause various skin diseases. This soft and comfortable pillow does not contain toxic substances such as formaldehyde, methane chloride or PBDE and provides healthy protection. All materials are chemical free for better health. It is filled with Polyester and Polyurethane materials for softness and comfort and also makes the product light and flexible. OUR GUARANTEE We are confident that we offer some of the best products on the market. Therefore, we provide a 30-day guarantee. We will make every effort to ensure that you are completely satisfied with your purchase. Online shopping can seem daunting. We want you to know that there is absolutely zero risk of purchasing something. We won't make it difficult if you don't love it. We offer email and ticket support 24 hours a day, 7 days a week. If you require assistance, please contact us. Please contact customer service if you have any problems with your purchase.