It’s fairly common to equate a travel pillow with a regular pillow that you would use in your bed. Both items serve a similar purpose, and you’ve likely spent your whole life putting a pillowcase on your regular pillow.
However, the travel pillows that you purchase from places like Amazon are a little different. The material that is used on these is a little more durable, and is actually designed to be used without a pillowcase.
In fact, there aren’t a lot of options available when it comes to travel pillow pillowcases, as most of them are different sizes and different shapes. This is contrary to the regular pillows that you use in your bed, which are all very similar in size and shape.