Yeah. What they need is a true full day's charge and a fast charge so you can charge it in the morning while you get ready (and maybe a top off at night). Or for a lot of people you can probably do it now by taking it off when you get home and charging it until you go to bed then wearing it overnight. There's an opportunity in the morning to top off the charge again if it's not making it through the day.

A sleep mode could also make over night wear more feasible. Really you don't want any notifications coming through anyways so all the wireless connectivity can be turned off along with the screen and the processor clocked waaaay down.