Dread wraps and mould

This might seem strange...

but how long should you keep a dreadwrap in?

I got one of my dreads wraped at a festival but i am thinking that when i wash my hair the dread inside the wrap wont dry properly causing mould?

is this likely to be a problem

 

nah it'll be fine i had a hemp 1 in for hmm 3 or 4 years maybe
others ive had in s year or 2

 

I just used to keep them wrapped in a cloth for a day and then sleep with loose ones