Here's some information for shopping:
Material and Comfort:
Look for pillows made with soft, breathable fabric and ergonomic memory foam for optimal comfort and support.
Support and Ergonomics:
The U-shape is designed to provide 360-degree support for your head and neck, helping to maintain spinal alignment and reduce strain, especially during travel or long periods of sitting.
Features:
Some pillows offer additional features like adjustable locks for a customizable fit, or cooling gel pads for temperature regulation.
Portability:
Consider the size and weight if you plan to use it for travel, ensuring it's compact and easy to carry.