- High-density memory foam core provides stable support and preserves its shape and density so your head does not sink too far. Suitable for side, back, or stomach sleeping, promoting a deep, undisturbed sleep. - Memory foam automatically deforms under strong pressure and rebounds within about 5 seconds, offering soft yet firm support and consistent comfort year round. - Improved pressure relief design with a thicker neck contour and a larger shoulder area to better fit the neck and shoulder curvature. It supports, stretches, and relaxes the cervical spine. - Ear groove design with a cotton cover and slow rebound. The ear groove reduces pressure on the ears when side sleeping. Independent cervical spine support with directional traction helps relax the cervical spine. - Use scenarios: - At home in bed for all sleep positions. - Travel on plane, train, or long car rides. - Office or desk naps and sofa rests.