You are generally allowed to bring your own pillow or blanket on the plane, but there are a few factors to consider: 1. Space limitations: Keep in mind that space on airplanes is often limited, especially in economy class. Consider the size of your pillow or blanket and ensure it can be easily stored in your carry-on bag or personal item. 2. Security screenings: Your pillow or blanket may need to go through the security screening process separately, so be prepared to place it on the conveyor belt during the security check. 3. Bulkhead and exit row seating: If you are seated in a bulkhead or exit row seat, there may be restrictions on using your own pillows or blankets due