I bought this to use until my reclining sofa arrived, so I've only used it about three times, and I think it's in good condition. I've heard that this type of pillow is also good for people with acid reflux. I purchased it for about 12,000 yen. Cover Material: 100% Polyester Filling: 25D High-Resilience Urethane + 32D Low-Resilience Urethane This is a version uniquely developed specifically for the curves of the Japanese body. The thickness determines the comfort of the backrest cushion. Even backrest cushions that look the same can have a world of difference in support depending on their thickness. The approximately 20cm extra-thick design firmly supports the upper body while also being durable and resistant to wear and tear even with long-term use. Whether used as a TV pillow or for reading books, it gently supports you without stiffening your shoulders, ensuring comfort until the end. Both the backrest and the footrest have been upgraded from the original pure 25D high-resilience urethane to a composite material of 25D high-resilience urethane + 32D low-resilience urethane. Compared to ordinary cushions, the support is maintained while the experience is even more comfortable. Your whole body is gently enveloped, and you can enjoy a unique sensation as if you were in a space of anti-gravity... a feeling of gently sinking. The head pillow included with the inclined pillow has undergone repeated prototyping, and finally, the enlarged gold size of 20x8cm was decided upon. The low-resilience urethane material gently fits the curves of the body, providing perfect support for any body type. With the Velcro design, the head pillow can be moved freely, and the position can be easily adjusted according to the usage scene, achieving a comfortable feel whether supporting the head or assisting the waist. Handles made of the same material as the cover have been added to the backrest and footrest. It is easy to carry without compromising the appearance. Whether in the living room or the bedroom, you can freely enjoy the space in your home without difficulty when you want to change the layout. Even if the cover gets dirty, you can remove it from the main body and wash it. The color-resistant reactive dyeing technology is used, so you can easily wash it in the washing machine many times, keeping it clean and comfortable at all times. Because it uses low-allergenic fabric, it is suitable for people with sensitive skin and babies.