Will the Down & Feather pillow fit in standard pillow case? August 12, 2020 13:31 Yes! Our Standard and King pillows are sized to fit in most pillowcases. Related articles What are the different mattress sizes and dimensions? What is the Down & Feather Pillow's loft? Where is the Down & Feather Pillow made? Is the Down & Feather Pillow cruelty-free? What safety tests have you done on my Helix Mattress?