Interrupted sleep

I'm a bit perplexed these days at how to get my dear 3 year old to sleep all night. I can't say how long it's been since this has started but it's been at least a month or two since she's been getting up at random times at night and climbing into our bed. And it's been happening almost every night. We have been putting her back to her bed some but not always, which is probably escalating the problem. Some attempts have gone bad due to her throwing fits about it in the middle of the night, and us fearing she'd wake up her sister in her room, or the puppy that still sleeps in our room (in her crate, not our bed). I've been praying over her a lot before bed. I prayed over her last night when she woke up again. She still was fearful and insisted on me sleeping with her or visa versa, so I resorted to putting a pallet on our floor next to our bed and she was quite content with that. Although, I do not want to make that a habit either. She asked to sleep on my floor tonight again but I didn't give in to that. There was a time a few weeks ago that I prayed very intentionally and specifically against anything that is giving her bad dreams or for wisdom and revelation into what is waking her up so much. That night, she never woke up. But has done it every night since. Tonight, I decided a new attempt at playing some soft Christian music in her room. She really was pretty excited when I brought up the idea and it made her stop asking to sleep on my floor. Phew! That was a relief. She went to sleep very well with the music playing. This will be our first night to attempt this, and I'm praying it helps her. Her room seemed way too quiet before and I just wonder if that has been contributing to her waking up. Too many noises she hears, etc. So we shall see how it goes tonight.