How to be fashionable and high class comfort on international flights?

I want to keep my style and look jet-setting when I international flights next month, yet I want something I'll feel comfortable sitting for a few hours, and will withstand a few hours sleep. What should I wear .. ideas? Oh, and what is a good one proceed? I certainly do not use a backpack, but I thought an oversized purse? What do you think?

oversized bag is good. Drving may wear shoes or boots of travel, dress pants comfortable gown uncomfortable or plain white tee, maybe a cardigan or a sweater (Planès get cold, do not use the pillow cases, neither my mother worked in the airline industry for 20 years, they rarely wash things)

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