Why does my 17 month old take 1-3 hours to fall back asleep soundly enough that I can roll off her floor bed every time she wakes up at night?

I just want to go in there, feed her, and be back outta there in 20 minutes. I can’t understand why it’s taking this long and it’s making me exhausted.

I would like to night wean because I think that would help but I just cannot do the crying/tears thing.