To keep putting the duvet back over dd when she repeatedly kicks it off.

[StrongTeaHotShower]

Dd is 3 this month and in a 'big girl' bed complete with a proper duvet.
She kicks it off repeatedly in her sleep and doesn't seem bothered or cold but I have to cover her over with it. I just can't leave her be. It's 22 degrees in her room tonight so not chilly but I couldn't sleep in that temp without being wrapped in a duvet.
Is she just too warm?

Do you have a sheet or a small baby blanket you can leave with her? Then she can snuggle up herself if she gets cold. Mine kicks off all the blankets and then burritos herself in her fleece baby blanket.

I agree Rozdeek. 21.5 here and it's freezing! Although I slept under a duvet when it was 30 in our room in height of summer

rozdeek we must be used to London temperatures!

I resisted covering her and she slept like a dream all night. I was being unreasonable

I get what you mean OP, my toddler always kicks off his blanket and looks cold, it's hard to resist the natural instinct to wrap them up! But I figure he wouldn't kick it off if he didn't want it off and he sleeps well if I leave him.

My 3 year old DGS covers himself up if he gets chilly, so I really wouldn't worry. You'll know soon enough if she wakes up!