I teach a 6 a.m. class, and I generally try to be a little quieter and gentler in the first half since they're still waking up, and not get them as "deep" on the relaxation. I get them breathing, but use cues more like "building calm/focus/intention for our days" than "letting go," or "sinking down."
It's a Monday class, so it is sooooo hard to get up, but I am always so delighted with the feedback and how I feel at the end; it's a great way to start the week!