Does he listen and respond to other directions you give him? If getting up is his only issue then I'd implement an earlier bedtime as a result of not getting up & moving on time. Make it 15 minutes earlier each time he does not get up in the morning. This works on some of them. Bedtime can be later once he shows he's getting up and dressed in a reasonable time.

Another alternative, could your husband get him up before he leaves for work?