Introduction
Quality sleep is one of the most important factors for maintaining physical health, mental well-being, and overall productivity. Yet millions of people struggle with poor sleep due to neck pain, back discomfort, improper sleeping posture, and inadequate pillow support. While mattresses often receive the most attention when discussing sleep quality, pillows play an equally critical role in ensuring proper spinal alignment and comfort throughout the night.
Among the growing number of ergonomic sleep products available today, the Derila Ergo Pillow has emerged as a popular
