I didn't know dc'ing got people so defensive. Some of the responses are getting kinda.....well, lol. It's not that serious to me. I don't even feel that dc's are doing a whole heck of a lot. When i do use one i want to be sure it is one so i only use it if it says it's a deep con....simple as that. I hate dc'ing so i won't waste my time with something i'm unsure about.
If you'd like to put Suave on you head for 2 days by all means do it *shrug*.
The point of dc'ing is to moisturize down into the hair shaft (penetrate) so most likely it won't feel much different than using an instant conditioner on the outside because it's within the hair shaft (this is how I see it) so to be sure i'm using the right thing I use my own judgement which includes looking at ingredients, weather it's packaged as a dc/mask, how long it says leave it on, etc. There is no set rule or product, do your research and use your own judgement.