I am hearing the concept of bed hair for the first time, I would have separated the hair from the bed if I did not know any better. But then I had to inquire about the concept, then I knew it is a literal phrase. The hair stands out straight from the scalp in a weird way, and this can be caused by lying on the bed. This kind of hair becomes very difficult to style and most importantly it looks untidy and unkept. The bed hair comes together, it does not have a separate meaning...
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