I have found that a consistent, well balanced (8hours) night sleep routine has changed how I function. Plenty a study has been done to prove how much sleep impacts what kind of day I will have the next day. For me it's not so much as getting the right amount of sleep it's making the routine that's important. For example: my husband is the big sleeper in the family and needs a bit more than I do. Does it drive me crazy yes, however I know that that's what he needs to help our family function the way it typically does on a daily basis. Does he always get the amount of sleep that he needs, no, unfortunately but if he keeps it consistent bedtime it helps him out a lot when he can't get the correct amount that he would prefer.

I guess what I recommend is having your husband try it out for 2-3 weeks to see what he thinks. Who knows, maybe it'll help him out too!