Have you ever been in a middles seat for long haul flights in economy? I have including an ultra long haul from Singapore (17ish hours!!) Here is my advice: It’s not weird if it works! If it works for you and makes you more comfortable who cares what anyone else thinks! Bring the pillow, buy the gadget, bring slippers and a blanket. Whatever you need to do to stay sane, comfortable and try to get a few snoozes on long hauls do it!