I used this pillow with a pillowcase for about two months. It just didn't suit me, so I'm selling it. GOKUMIN Low-Rebound Pillow [4-Level Height Adjustment Function for a Good Night's Sleep] High, Low, Non-Slip, Side Sleeping, Back Sleeping, Stomach Sleeping, Reduces Neck Pain, Sleep Well Pillow, Sleep Well, Pillow, Makura, Gokumin, Black, pillow - Brand: GOKUMIN - Product Name: Premium Low-Rebound Pillow - Model Number: PTMM-02 Standard Type - Features: Uses low-rebound material - Design: Ergonomic shape - Color: Black