Disturbed Nights

I am certain that it is something that affects most parents with children of all ages, especially those with younger children.
However, one of my daughters has been waking up more than once a night for about two months in a row now, and she, and we are not quite sure why. The chances are it is nothing more than needing some sort of closeness at night, maybe reassurance.
She usually comes in at some time around midnight, and again at sometime between two and three, often snuggling herself up close to me.
Most times I don't even notice, and even when I do, she cuddles up and falls asleep so quickly that I am quite content for her to be there. On occasion I get slapped (accidentally) or kicked but for the most part I am happy to give her that reassurance or that closeness.
If anyone out there reading this has experienced something similar, then I would love to hear from you, and whether you got to the bottom of the behaviour?
I am certain that it will pass at some point and she will remain in bed again all night. We have experienced this in the past with her for various reasons, and it is likely that this is nothing more than developmental.
The main reason that got me writing this particular post today was that this morning saw a slight change in routine. I was woken with a couple of slaps to the head and was told by her that she wanted to be carried back to her own bed. This has inspired this post's poem:

I wake to a slap on the head
A demand to be carried
With imploring arms stretched high

I stagger with blurry eyes
In the small hours darkness
And lift her back into her bed

I wanted to sleep alone
She says snuggling amongst toys
And purrs back into snores

I am for her a strong bridge
And sinking into my own bed
Drop into sleep like a stepping stone