Just have a routine.
My son, was like that.
He recently made 4.
Its a phase.
I had a ROUTINE with my son... BEFORE bed, I told him to put anything he wants in a small basket, and I got him a straw cup of water for bed.
So he'd put some of his toy cars in the little basket, to keep in bed with him, also his Lovey etc.
The point is to get these things BEFORE they ask for it. And tell him, beforehand... that once she gets in bed, that's it.
My son also has a flashlight IN bed with him....that HE can operate and turn on or off himself. If he forgets to turn it off, fine. Its just a cheap flashlight. I don't use night-lights.
If her sheets are messed up.. then well, teach her HOW to rearrange it.
Just show her how.
Its all about prep and routine... BEFORE they get IN bed.
Routine.... same routine EVERY night.
Its a phase.
My son is actually 'easy' to put to bed... but if I explain BEFORE hand, and get things ready BEFORE he gets in bed... then it reduces the 'requests' that they do... once they get in bed.
In other words, 'anticipate' what she is going to ask for, then do it BEFORE she gets in bed.
And if she asks for something, say "you can do it yourself...."
all the best,
Susan