flexiril taken at night makes me feel so drowsy and out of it even the next day. it's been awhile since i have taken this med, so i cannot describe any more detail. with soma- i don't get any weird feelings the next day like i did with flexiril, and while on the med, i was capable of thinking and functioning normally- so no unpleasant side effects at all. this of course varies from person to person, but i hated flexiril so much that when i went to a walk-in clinic for horrible pulled muscles in my chest that were very painful, i didn't even fill the flex script they gave me, i'd rather deal with the pain for a couple days than feel like that again.