as it happens, I was hunting for beds last night, and found this

http://www.ventadecolchones.com/Producto.aspx?node=60

implying that, as far as furniture shops are concerned, a 'cama completa' is the base + the mattress + a pillow, with perhaps a mattress cover thrown in.

However, for promotional real-estate purposes, the bed will almost certainly be made up, with an attractive bedcover or throw, cushions, etc. I'm pretty sure that is what they'd be getting at in this context, rather than that the bed has a mattress and pillows!

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Note added at 1 hr (2011-04-07 15:08:09 GMT)
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By the way, I think that in EN you could omit this, as the text goes on to describe HOW the bed is made up.
OR, you can simply say something like "... magnificent ebony bed adorned with ...