So, I am now on my second set of aligners because the first didn't do the job. I specifically asked for the nighttime aligners this go round because wearing them 22 hours a day is horrible. I mean, few hours of drinks with friends? Forget it. Hungry but already had them out 2 hours? Sorry for ya, nothi.g but water. It sucks. Anyway, the gal said SURE! We can get you nighttime aligners. They came, and say 22hrs a day. Come to find out I'm not a candidate for the others but the gal didn't bother to tell me that. O, and the "smile team" you have 24/7 access to? They are poorly trained people sitting in a foreign country somewhere that barely speak English. Good luck understanding them...