befogged
be |fogged |bɪˈfɒgd | ▶adjective incapable of clear thought; confused: a thought swam through my befogged mind.
befogged adjective her brain is befogged by lack of sleep: confused, muddled, fuddled, befuddled, addled, groggy, dizzy, muzzy; informal dopey, woozy, not with it.