I have a HAB that I used alot when Toby was little. I'm not really one for wearing a baby for the sake of it, but I did wear him alot when he was really young because he just liked to be close I remember many days of having him the HAB while I did other things during the day.

Although it wasn't a day in, day out thing I didn't have any issues with him sleeping at night or anything because of it. I guess alot would depend on the baby's personality and how much you end up having them in the sling kwim? Not much help am I LOL.