good for 20 years or the end, whichever comes first

I remember when my father was dying (cancer of the pancreas), he made jokes about green bananas (don't order them because they won't ripen in time for you to eat them), magazine subscriptions, serial stories, and so on.  I thought of him a few weeks ago when I  bought a new passport. I had a choice of a five-year or a ten-year document.  I chose the  five-year. I have a feeling I won't feel much like travelling after another five years. Today I bought a new mattress, good for twenty years of slumber - not eternal slumber..  My son helped me choose it, and he delivered it (on his roof rack) and carried it in (no dolly), installed it (with his bare hands, bless him).  As I was tucking in the mattress protector,  I commented that I probably won't be here when the bed is dismantled. He agreed.  But my financial planner has told me that I have enough money if I live frugally  (how frugally?) to last until I'm 105. So I won't have to buy a new mattress. I have no intention of buying  another mattress.  I do not intend to "let myself go".  i do not intend to veg out with Netflix.  I do not intend to quit drinking wine in order to live another year or so (???). 

I think I'm going to stick around - for a while. (I could be wrong.) Anyway, I'll be sleeping better.