Not only have I merely napped in Focus Dailies, I've left them in for up to 3 days at a time, sleeping in them for up to 10 hours at night. They need some drops in the morning, but then I am good to go...
Yes, I know, my OD would probably have a fit, but these
contacts have really worked well for me...!
I don't wear them for up to 3 days anymore, too paranoid as they have a really low oxygen passage rate, but I will occasionally wear them overnight, and can often wake up and not ever need drops.
Love my Focus Dailies...!