If you’re used to sleeping with a fairly soft down pillow, I cannot recommend enough just splurging for down travel pillows. My kids and I use these (the smaller 12x16 size): https://smile.amazon.com/dp/B074QS2R5T/ref=cm_sw_r_cp_api_i_YE82A2KEJ7BHA3TVGPY5?_encoding=UTF8&psc=1

They’re expensive, more so than when I bought ours, but totally worth it imo. I’ve had one for nearly a decade and bring it with me anytime I travel (hotel pillows are always too thick for me). My kids sleep on theirs at home and while traveling/camping. They’re about 6oz each and squish down very small since they’re down. (Note that you’ll need to buy pillowcases separately.)