These pillows are described as "Hotel Quality". I don't know which hotel the designer of this pillow has stayed in but it certainly isn't one I've ever stayed in. These pillows, if they fulfill that description are absolutely not fit for purpose. I followed the instructions and left them to 'plump up', 'inflate', whatever you want to call it for the 24 hours as described in the instructions.....and, two pieces of extremely thin fabric to greet me in the morning. You would need four of these pillows in a single pillow case to one average pillow. Needless to say I am returning these and won't have any problem at all getting them back into the box, which would have actually made a better pillow. A waste of money.