Futons should be aired regularly and sunlight helps to kill dani (flea type things) that love futons and tatami. Saturday was boiling so I hung my base futon and left it as I went shopping. It was pretty windy and I ignored the niggly feeling that it might blow away, as, well, it had never done so before! Walking down my road, I discovered the futon was no longer there or on the ground, so thought that a futon thief or ninja-speed homeless guy may have nabbed it. Getting back inside, cue the no lesser horror of seeing it on the roof of someone's garage! Getting it back was actually very easy but embarrassment caused me to wait until dark: walk through the next apartment and lo and behold the ground is higher, reach up and sprint back inside!