“under the mattress” is not meant to mean actually put cash under your bed, but put it somewhere hidden that you can get to it. Banks don’t have much actual cash in their bank. Get some of yours now and put it away. Do it before September, like now.
Why September?
Cash only depends on the value behind it. In Germany around the time of Hitler, people hid tons of cash in their mattresses ...and then found that it was totally worthless. If you feel freaky enough to believe this “warning,” buy property or hard goods.
You haven't been keeping up with the signs. Like a blood moon.
“7 Key Events That Are Going To Happen By The End Of September”
http://www.zerohedge.com/news/2015-06-12/7-key-events-are-going-happen-end-september