Buying a new one ordinary pillow you pay from 100 to 200 Eur/$ for a pillow and you have to do so every few years because you take care about your health, hygiene and healthy sleep especially. By the way, you will be happy if you find the right one for you. Taking care of yourself in whole lifetime you'll buy an ordinary pillow at least 27 times and will spend from 2 700 to 5 400 Eur/$, wasting your own precious time and spending your earned money.
"So, you need to be changing your pillow, probably about once every 18 to 24 months, you need to be changing your mattress about every 7 years" Michael Breus, PhD Sleep Specialist is telling us: https://www.webmd.com/sleep-disorders/video/breus-touch-sleep
SAVE MONEY – SLEEP BETTER!