I take Baclofen for a muscle relaxant. It doesn’t make me groggy. I usually can’t tell I’ve taken it. Most days I don’t. I do a lot of leg-shaking, hand rubbing and other twitchy movements unconsciously, probably as a distraction from pain. My muscles stay tight. So when I become aware of this - usually when I sit down in the evenings - I take Baclofen. I try not to take it before driving, because I also have Percocet in my system. I also rely on CPAP to keep me breathing through the night. I take Ambien at night, because when the long day is done, I WILL NOT lie awake at night.
Lots of medications to keep life manageable.