The butterfly shape of this pillow provides superior comfort. This allows you to fall asleep faster, stay asleep longer and wake-up feeling rested The Derila offers perfect comfort no matter what your preferred sleeping position: Side, Back, or Stomach Made from memory foam, the Derila offers the right level of firmness. Fall asleep faster anywhere, knowing you are fully rested Made from only the highest quality materials, the Derila is a premium crafted product The Derila Memory Pillow is from memory foam making it completely natural and breathable. This provides optimal comfort while helping control your temperature throughout the night. Stay cool and sweat-free!