Japanese term (edited): �x�b�h�A�b�v30�x

I think it is the backrest of bed and not bed itself.

raise the head of the bed by [to] 30 degrees

I basically agree with cinefil's answer above, but the portion which can be raised is not called "backrest", but it is called "head". Google gives about 1,620 examples of "raise the head of the bed", and I believe this phrase is quite okay. (There are only 9 examples of "backrest of the bed" in Google.) For how much you raise the head of the bed, there are several ways. You can say "... by X degrees" or '... to X degrees", or you still can say "X degrees" without any preposition like "by" or "to". The examples below show each case.

http://allnurses.com/forums/showthread/t-42766.html
http://www.expectantmothersguide.com/library/philadelphia/EP...
http://www.uic.edu/classes/pmpr/pmpr652/Final/Winkler/ICP.ht...


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Note added at 2003-10-02 09:34:19 (GMT)
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It seems that preposition ¥"in¥" cannot be used in this case. In Google, I could not find any example of ¥"raise the head of the bed in X degrees¥".


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Note added at 2003-10-02 18:15:12 (GMT)
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For your additional comment, I don¥'t think that there is a fixed term for this setting. Apparently, ¥"ベッドアップ¥" is a Japanese English term, and I don¥'t believe that ¥"bed up¥" is used in the same way in English, as you also presume. In your example, ¥"ベッドアップ30度¥" is one of the examples for rehabilitation procedure, and you may be looking for a noun-like term. But, since the information in ¥"ベッドアップ¥" is too specific, it will be difficult to find a term for this expression. My suggestion for such a noun-like term would be ¥"the head of the bed raised (by [to]) 30 degrees¥".