Keeping them wrapped overnight is kinda sketchy. If you sweat and it gets caught in the wrap, it can be just like swimming where your skin get saturated and wrinkled, it can cause the ink can bleed out.
The idea is to keep it from drying too much so your skin doesn't crack and push ink out, and not too wet to where the ink become saturated.
All my tattoos, I just keep clean and use small amounts of Aquaphor when it starts to get really dry out. It's not really a process, just keep an eye on it and you'll be fine.