We only have down pillows. One of my pillows has been to NZ twice, England, Holland and Paris, as well as on various trips in Canada and the US. I find having at least one pillow from home, helps me to sleep better in hotels.
Someone mentioned pillows going flat, how often do you wash them?
I have a down pillow that is over 25 years old and will need replacing later this year. I wash all the pillows in the house at least twice a year in my top loader washer.
Op you can always call a hotel and ask when they get their bedding and if they will sell you the pillows.