Getting to sleep, fine. Feeling rested, nope.

I am currently on 50mg Elvanse + 10mg Amfexa. I am taking meds around 7am/1pm.

Does anyone else find that even if they get 8 hours sleep they are just not getting rested? I wake up feeling seriously drained and just tired. There are bags under my eyes and I feel like I have got 3 hours of sleep in.

I imagine the stimulant is blocking REM sleep but I really don't know.

How are those of you that are getting to sleep at a reasonable time but just not feeling rested dealing with it?