MLVOC Inflatable Travel Pillow, Auto-Inflating Neck Pillow for Airplanes with Soft Velvet Cover Machine & Washable, Blue

It's alright. Nice and compact so that you can easily fit it in your carry-on luggage but it doesn't provide enough support to make it comfortable to sleep unless you're in a window seat. Even then, I find that a small pillow or a wadded up hoodie is more comfortable to rest against.