OK, I've had my haircut.....now the hairdye

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I had it bobbed to shoulderlength (I have to tie my hair back).
No layers, it's all one length.

I've got the hairdye but my hair feels a bit winter sad.

I do haveOrganix Moroccan Aragon Oil

So can I apply,clingfilm and a hair turban? And leave overnight?

The writing is very small on the bottle
TIA

Aragon oil to get my hair well behaved before the hairdye

Depending on brand and whether lighter or darker hair dye often does wonders for condition of hair..