The extra length for the twin xl allows me to tuck the comforter in. I didn't have any issues with the filling bunching or shifting.
It's very flat and not comparable really to other down alternative duvet inserts. In my honest opinion, it's just ok.
It’s soft, light weight and warm yet breathable. Light weight and very comfy, nice feel and looks very nice even without a duvet. Recommending to all my friends.
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