半平[hanpei] pounded fish cake
一紙半銭[isshihansen] small sum
一知半解[icchihankai] superficial knowledge
一半[ippan] half
印半天[shirushibanten] livery coat

下四半期[shimoshihanki] last quarter (of the year)
下半[kahan] lower half
過半[kahan] the greater part
過半数[kahansuu] majority
脚半[kyahan] gaiters

一睡り[hitonemuri] (usu. in positive sentences) (a) sleep
一睡[issui] (usu. in negative sentences) (not) a wink of sleep
午睡[gosui] nap
昏睡[konsui] lethargy
こん睡状態[konsuijoutai] lethargic state

熟睡[jukusui] sound sleep
睡眠[suimin] sleep
睡眠剤[suiminzai] sleeping tablet
睡眠不足[suiminbusoku] lack of sleep
睡眠薬[suiminyaku] sleeping pill

醒ます[samasu] to awaken
醒める[sameru] to wake
興醒し[kyouzamashi] kill-joy
興醒め[kyouzame] kill-joy
興醒める[kyouzameru] to lose interest

寝醒める[nezameru] to wake up
覚醒剤[kakuseizai] stimulant (e.g. psychoactive drugs like methamphetamine, ritalin, etc.)
覚醒[kakusei] waking up
酔い醒め[yoizame] recovering from intoxication
興醒まし[kyouzamashi] spoiling the fun