How to do a bleach bath??

Mix up some more, make sure the strand is really saturated and wrap in cling film. Check it after 15 minutes, if it isn't light enough cover it back up and leave a further 5-10 mins and check again.

Also, if it's cold where you are, put the wrapped up hair in a pocket, up a sleeve or something. If it gets cold it won't work.

Did it again after taking your advice and placed it in the mantel place and it lightened a lot :), the bottom was a bit darker than the top though!
Now when i do it on sunday morning do i just mix the remaining stuff from the kit ? And just be prepared after rinsing can i use a purple shampoo and conditioner straight away after to tone it a bit or is it best just to rinse all the bleach out and leave it

Yep, mix all of the bleach and you can put purple conditioner straight on 🙂