Gain or take advantage?

Hello everyone,

I would be thankful if a native speaker could give his or her opinion about the verbs gain and take below.

Companies are springing up to gain advantage of our sleeplessness.

Companies are springing up to take advantage of our sleeplessness.

Bye,

Bonovox

And if you need an American speaker to say it's the same here, I second that.

You can gain "an" advantage, but you "take advantage of" something.