So much of that depends on what other money you have. Certainly you must have additional money on the sidelines — outside both the stock and bond market. For that type of “chicken money” a Treasury money fund or a FDIC insured money market deposit account at a bank would be the ideal solution. You should have enough “cash” outside your investments to carry you over for at least two years, just in case of a stock market decline.
But are you aware that you are also vulnerable in the bond market? If the stock market declines because of a recession, unless you have the highest quality bonds, you could face some defaults. And if interest rates rise because of inflation, then the market value of your bonds will decline.
I hope that you have done an estate plan, and also perhaps purchased long-term care insurance — so that things are in order in case of an emergency.