Early second treatment?

Just wondering if i do my second permethrin cream treatment 2 days early if it will lessen the effectivity? I started my treatment during the week however I’m a university student who has a very busy schedule during the week with classes, discussion groups, studying etc. I also have roommates who I don’t think would be super appreciative if they woke up to me vacuuming my mattress and doing my laundry early in the morning. Does the cream still do its job if I do the second treatment early?