len_k_a
2005-12-14 15:37:00 (ссылка)
не знаю, мне не страшно
я не сплю ни в каких, это индивидуально
если у вас здоровые, неиспорченные ношением линз глаза - спите на здоровье, именно так глаза и портят. я ношу линзы больше 12 лет и мне нельзя спать ни в каких, нисколько и ни по какой причине.
прежде чем вступать в спор почитайте литературу по поводу
ну или в крайнем случай погуглите.

Protein. Depending on what kind of contact lenses you wear and how much protein your eyes deposit on your contacts, your doctor may recommend you use a product for protein removal. While cleaning them does remove some protein, it can still build up on your lenses and make them uncomfortable. That's why the longer you wear lenses before replacing them, the more likely you are to need a protein remover. For example, if you wear disposables, you probably won't need one, but if you replace your lenses about once a year, you definitely will. Products for removing protein include enzymatic cleaner and daily protein removal liquids.

и еще
Until the introduction of multi-purpose solutions, protein deposits needed to be removed, at least weekly, using separate enzymatic cleaners.