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Comment on Group Theory in the Bedroom: the curious mathematics of mattress flipping

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A King-sized mattress could be made square by being just 4 inches wider. Not only would it make more rotations possible (8) but it would also be easier to put the sheets on, as it's impossible to put them on the "wrong" way.

Sorry, just a pet peeve of mine.

I've been peevish about that too. 4" off-square makes no sense.

Solved it by getting a Cal-king. Much happier, more snuggling with my wife, and my toes don't hold up the end of the blankets any more (I'm 6'2").

The only problem I've had since is that 4 Cal-king sheets we ordered in a row were mislabeled, and in fact Kings (or some other shape/size. trust me, they've been pretty weird). But that could be because I'm in the Midwest, where Cal-anything is mostly unheard of.

To get back on topic, the article is rather amusingly complete... I'm quite impressed someone would put this much work into this (though not surprised. A (math) geek, obsessed? never!).

That would also allow for a more even wear across the mattress. The center (from left to right) of our current mattress becomes soft and saggy over time, which can not be solved by anything but a quarter turn (or a new mattress).

We have tried to rotate the duvet and pillows to get the same effect, only to find The Boy's head at my feet next morning.

If you really want to rotate your mattress: IKEA used to sell round beds and mattresses. It's a bit too "Playboy Mansion" for my taste though, and it severely limits your options in sheets and duvet covers.

I would be reluctant to rotate the mattress so that the old feet location is the new head location.

Why? (Ignoring say foot fungus, is it just squeamishness or is there something else I should know? ;))

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