Animals tend not stay up for more than a few minutes.

If the game went the other way, well, I would not want to stay up for that.

Then they argued about whether to stay up here for another few days, or start back to the camp.

And the Web site will stay up for a long time.

I stayed up for the general election just long enough to see who had won.

"You still comfortable with the idea of staying up here by yourself for a day?"

"And he stayed up pretty late for him last night."

They could also simply stay up for the time being.

"The site could stay up for days, weeks, or possibly even months."

Under his direction the team was able to stay up for three years despite having a very small budget.