After five years of pain and seventeen failed pillows, the DERILAERGO Memory Foam Pillow is the best memory foam pillow I would recommend without hesitation. The contoured design, premium memory foam, and a perfect 5-inch height make it ideal for side sleepers experiencing neck or shoulder pain or poor sleep quality. https://www.researchgate.net/publication/404500468_Derila_Ergo_Pillow_Reviews_2026_Tested_Results_for_Neck_Pain_Side_Sleepers