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 is the Down 7 Feather Pillow's loft? Where does my Mattress Protector go? What is In-Home Delivery & Setup? Can I wash my Ultra-Cool Pillow? What is the Helix Ultra-Cool Pillow made of?