P.M.
I used to employ "behavior charts" and rewards with my daughter with success. I don't think they should be used long-term to control behavior (which ideally becomes internalized as a child matures), but they are great for breaking patterns and habits.
It worked best to chart the behavior over at least 5-7 days to get an "average," but you may already have a good idea of how many times/night your kidlet pops up. Talk to her (NOT at bedtime) about how and why this habit is bad for all of you, and that you and she would do better if she stayed in bed at bedtime.
Show her a chart which you will mark every time she gets up, and that if she gets up only X times (half her current number) for two nights, she'll get stickers (or coupons or tokens) that are worth a special reward.
Rewards will work best if she gets to help choose (small toy, special event, time with mommy, extra bedtime story, food treat), and if the first reward or two are easily within reach. Set that bar low to start. Remind her occasionally during the day about this interesting new opportunity she has to earn a reward. Don't be dramatic or excited, just cheerful and positive.
After she gets the first reward, increase requirements for the next cycle by reducing the permitted pop-ups to one, and/or increasing the days till next reward by one or two. When she succeeds, she gets the reward and your appreciation.
If she fails/loses interest, you've set the requirements too high. So don't rush the process, because once a child gets discouraged, it may be harder to get her engaged again in the chart. Kids that age aren't good at planning ahead or setting long-range goals.
I never had to use more than three charting cycles on any behavior to get a new pattern established with my daughter. My grandboy, the same age as your daughter, also responds wonderfully within a couple of cycles.
Using a reward chart can dramatically speed your daughter through this common phase. Even without charting, if you are persistent and patient about directing her back to bed, your daughter will probably move past this behavior in a few weeks/months.
One other thing I would try would be to make a list of reasons it's okay to get up (gives her a sense of control), and a list of not-good-enough reasons. You can incorporate humor if you wish. Is "pillow turned into an ice cube" a good or bad reason? Good, yep, but it's not going to happen, is it? How about "a hundred kittens bouncing on your bed?" Review the lists at bedtime until the behavior fades. Discuss the serious reasons, then add a goofy one each night.