Are all silk hair turbans created equal?

[WWGD]

Looking to get teenage dd one for Christmas. Long blond thick hair. But price points vary a lot and I can’t work out why.

Not sure if it is the same as silk pillows but the cheap ones aren’t real silk. I’ve seen one on Amazon that said 100% mulberry silk on all the pictures but when you look in the small print at the composition or on the label it says polyester.

Is her hair very long and thick OP? I have shoulder blade medium thickness hair and I only just fit all mine into a "standard" one.

Yes pretty long and very thick.
Just trying to think of christmas present ideas. She liked her silk pillowcase last year