Each sleep position has benefits and disadvantages, although sleeping on the stomach generally isn't recommended because it can constrain the neck.

WSJ: Find the Perfect Sleep Position

Certainly, if your long position is too large to let you sleep at night, reducing it when prices are rising is a good idea.

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Videotaped sleep studies have found that adults might change their position between three and 36 times a night, with the average person switching about a dozen times.

WSJ: Find the Perfect Sleep Position

"You can sleep at night now that you know this is the government's position, " says Doyle.

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Ultimately, you have to position your portfolio in a way that both helps you achieve your financial goals and allows you to sleep at night.

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