Sure--lots of people do that. If you want some specific advice, come on over to the Hibiscus forum, I think there are a couple threads there already with some advice on bringing them in. Don't panic if some leaves turn yellow and fall off, hibiscus tend to do that when you change their environment, but they'll recover.
i will go to that forum but i just stopped at lowes and they were almost giving away the hibiscus that looked so healthy and ready to bloom--also the hibiscus bushes--i passed on them when the man said that indoors they usually get aphids--
I could be wrong but I don't think aphids aren't really a common indoor pest. Maybe he meant spider mites? That's something that you'll get indoors a lot. Or maybe he was mixing it up with outdoor hibiscus--mine are aphid magnets outside. I guess if you don't get rid of all the outdoor aphids before you bring it in then you'll continue to have the problem indoors but if you don't have any on there when you bring them in I don't think you'll have problems with them.
He (or someone he knows) might very well have had them on indoor hibiscus, but they got on there when they were outside before they came indoors. When there's one aphid it turns into a million aphids pretty quick, so I could see that would be pretty easy to mistake where they came from, maybe there were one or two on there when the plants came in but they were overlooked. Then a week later they had multiplied and there were a billion of them so it seemed like they got on them when they were indoors when in fact they didn't.