I travel internationally quite frequently. And I now own quite the assortment of neck pillows, because I just can’t seem to find one that works well for me. And quite honestly, my back doesn’t tolerate sleeping upright very well. Sometimes I splurge for business class, or get lucky on a last minute upgrade coming back, when the exchange rate is in our favor. But in general, I don’t count on getting any more than two or three hours of sleep on a flight. I also don’t want to wa