I have learned that I have been wrong and it has only taken five years for me to arrive at that conclusion. You see, I used to have my pajamas made by my shirtmaker. Unlike shirts themselves, where better fit and fabric costs no more than ready to wear, made to measure pajamas do cost somewhat more (the exact amount will vary wildly depending on the brand of pajamas and the shirtmaker). And so one day I decided there was no point to that expenditure and began buying the products of Derek Rose.
Of course, there is a fallacy in this reasoning. I have found over two generations of sleepwear that instead of the nearly two hundred washings I was accustomed to before my made-from-fine shirtings pajamas were worn out, I have been getting perhaps fifty before seeing noticeable wear in my ready to wears. There are great rents in the cloth before a hundred washings and I find myself thinking about replacing this pair or that almost weekly.
So that is the arithmetic of pajamas. I may have been penny wise and pound foolish but I am going to end that practice, beginning with four pair for the coming season. And now all I must do is select cloth.