[Supervised by the Director of Neurosurgery Clinic and a Certified Physical Therapist] Comfort Neck Pillow [Easy Care for Straight Neck in 10 Minutes

[Supervised by Two Experts] This model, supervised by the director of a neurosurgery hospital and a certified physical therapist, provides comfortable support for the neck, which is subjected to daily strain. Leveraging expert knowledge, the unique curved design allows for stretching without straining the neck or shoulders, resulting in a comfortable fit. It's ideal for everyday stretching. [Quality Inspected by a Japanese Institution] This product has been tested for free formaldehyde in accordance with JIS L1041 and meets the standard of 20 mg/kg or less. This test result means users can use it with peace of mind, without worrying about the health risks of formaldehyde. Because it comes into contact with the skin, we are committed to ensuring its quality and safety. [Washable Cover] The breathability of the main body cover has been tested according to JIS-L-1096 A method, and the result was 38.2 m³/(m²・s). Compared to the breathability of typical pillowcases, which is 15-30 m³/(m²・s), this product demonstrates superior breathability. Its high breathability prevents stuffiness, ensuring a clean and comfortable experience. [Support for the Ideal Neck Line] This product features a "cervical guide groove" that conforms to the contours of your neck. This unique design gently conforms to the contours of your neck and distributes excess pressure, helping to maintain a natural curve without straining your neck. The raised sides gently support your neck and shoulders, promoting a natural posture. [Specially Selected Materials] The soft, low-resilience memory foam provides a comfortable, enveloping feel while allowing you to stretch your neck. By distributing body pressure, you can stretch comfortably without straining your neck. [High-Durability Model for Reliable Use] Tested 80,000 times in accordance with JIS K 6400-4 Method B, it achieved a recovery rate of 98.3%. This means that only 1.7% of the compression was lost after 80,000 uses. This ensures reliable long-term use.