| Subject | English | Japanese |
| gen. | n vs usu. in negative sentences, not a wink of sleep | 一睡 news2 nf38 |
| gen. | assassinate someone while he sleeps | 寝首を掻く |
| gen. | assassinate someone while he sleeps | 寝首をかく |
| gen. | awake from sleep | 眠りから覚める |
| gen. | n vs catching up on one's sleep | 寝溜め |
| gen. | n vs catching up on one's sleep | 寝だめ |
| gen. | n vs comfortable rest or sleep | 楽寝 |
| gen. | n vs crying oneself to sleep | 泣き寝入り news2 nf44 |
| gen. | n vs crying oneself to sleep | 泣寝入り |
| med. | dead sleep | 昏睡 news2 nf42 spec2 |
| gen. | n adj-no deep sleep | 嗜眠 |
| gen. | n deep sleep | 春眠 |
| gen. | delta sleep inducing peptide | デルタ睡眠誘発ペプチド |
| gen. | disturb sleep | 睡眠を妨げる |
| gen. | n disturbance of sleep | 安眠妨害 |
| gen. | n vs eternal sleep | 永眠 |
| org.name. | European Sleep Research Society | 欧州睡眠学会 |
| gen. | n vs feigned sleep | 嘘寝 |
| gen. | n vs feigned sleep | 空寝 |
| gen. | n vs feigning sleep | たぬき寝入り |
| gen. | n vs feigning sleep | 狸寝入り |
| gen. | n one's figure during sleep | 寝姿 |
| gen. | first sleep of silkworms | ひと眠り |
| gen. | first sleep of silkworms | 一睡り ik |
| gen. | first sleep of silkworms | 一眠り |
| gen. | n first stage of sleep | 寝いりばな |
| gen. | n first stage of sleep | 寝入り端 |
| gen. | n first stage of sleep | 寝入りばな |
| gen. | get enough sleep | 寝足りる usu. neg. |
| gen. | get sleep | 睡眠を取る |
| gen. | n vs getting extra sleep while one has the chance | 寝溜め |
| gen. | n vs getting extra sleep while one has the chance | 寝だめ |
| gen. | go to sleep | 寝つく |
| obs. | go to sleep | 寝 |
| gen. | go to sleep | 痺れる ichi1 (e.g. a limb) |
| gen. | go to sleep | 寝付く ichi1 |
| gen. | n vs going back to sleep | ２度寝 (e.g. after waking up in the morning) |
| gen. | n vs going back to sleep | 二度寝 spec1 (e.g. after waking up in the morning) |
| gen. | n vs going to sleep | 就眠 |
| gen. | going to sleep suddenly | ころっと |
| gen. | n yoji good appetite and pleasant sleep | 快食快眠 |
| gen. | habit of moving around in one's sleep | 寝ぐせ |
| gen. | habit of moving around in one's sleep | 寝グセ |
| gen. | habit of moving around in one's sleep | 寝癖 |
| gen. | n hair disarranged during sleep | 寝グセ |
| gen. | n hair disarranged during sleep | 寝ぐせ |
| gen. | n hair disarranged during sleep | 寝癖 |
| gen. | n hair messed up in sleep | 寝乱れ髪 |
| gen. | n hours of sleep | 睡眠時間 |
| comp., MS | hybrid sleep | ハイブリッド スリープ (A power-saving sleep state in which any open documents and programs are saved to your hard disk, in addition to being saved to memory, before the computer enters the low-power state) |
| comp., MS | idle sleep | アイドル スリープ状態 (A sleep state that occurs when a system or device remains idle for a predefined length of time, as specified by the user in Power Options) |
| proverb | exp In spring one sleeps a sleep that knows no dawn | 春眠暁を覚えず |
| proverb | exp In spring one sleeps like a log | 春眠暁を覚えず |
| gen. | induce sleep | 眠気を誘う |
| org.name. | Japanese Society of Sleep Research | 日本睡眠学会 |
| slang | Japanese woman who readily sleeps with foreign men | イエロー・キャブ trademark (sometimes a stereotype of all Japanese women) |
| slang | Japanese woman who readily sleeps with foreign men | イエローキャブ (sometimes a stereotype of all Japanese women) |
| gen. | n adj-no lack of sleep | 睡眠不足 |
| gen. | adj-na n lack of sleep | 寝不足 news2 nf36 |
| gen. | n uk limbs going to sleep | 痺れ |
| gen. | n lonesome sleep | 佗び寝 |
| gen. | n lonesome sleep | 佗寝 |
| gen. | lull to sleep | 寝かしつける |
| gen. | lull to sleep | 寝かし付ける |
| gen. | magic word said to comfort a frightened child and put him to sleep | 犬の子 |
| gen. | mat, mattress, quilt etc. spread out on the floor or ground and used to sit or sleep on | 敷き物 |
| gen. | mat, mattress, quilt etc. spread out on the floor or ground and used to sit or sleep on | 敷物 news2 nf45 (しき・もの) |
| gen. | miss a chance to sleep | 寝損う io |
| gen. | miss a chance to sleep | 寝損なう |
| org.name. | National Sleep Foundation | 国立睡眠財団 |
| gen. | non-rapid eye movement sleep | ノンレム睡眠 |
| gen. | n oiled multi-layered paper sheet used to sit or sleep on | 油団 (during the summer) |
| gen. | n on the verge of sleep | 寝際 |
| gen. | ortho sleep | オルト睡眠 |
| gen. | paradoxical sleep | 逆説睡眠 |
| gen. | n peaceful sleep | 安らかな眠り |
| gen. | n perspiration given off during sleep | 盗汗 |
| gen. | n perspiration given off during sleep | 寝汗 |
| gen. | n place to sleep | 寝場所 |
| gen. | n vs pleasant sleep | 快眠 news2 nf45 |
| gen. | n vs pressing clothes, etc. by placing them under the bedding while one sleeps | 寝圧し |
| gen. | n vs pressing clothes, etc. by placing them under the bedding while one sleeps | 寝押し |
| gen. | put a person to sleep | 寝かしつける |
| gen. | put a person to sleep | 寝かし付ける |
| gen. | put to sleep | 眠らせる |
| gen. | put to sleep | 眠らす |
| gen. | put to sleep | 睡らせる |
| gen. | put to sleep | 睡らす |
| gen. | put to sleep | 寝かす ichi1 news2 nf47 (ねかす) |
| gen. | n quality ease, difficulty of one's sleep | 寝付き ichi2 |
| gen. | n quality ease, difficulty of one's sleep | 寝つき |
| gen. | n vs quiet sleep | 安眠 news2 nf42 spec1 |
| gen. | rapid eye movement sleep | レム睡眠 |
| gen. | n REM sleep | ＲＥＭ睡眠 |
| gen. | n REM sleep | レム睡眠 |
| gen. | n removal of make-up before going to sleep | 寝化粧 |
| gen. | restless sleep | 浮寝 io |
| gen. | restless sleep | 浮き寝 |
| gen. | n short sleep | まんじり |
| gen. | n vs silkworm's last sleep | 上簇 |
| gen. | n vs silkworm's last sleep | 上蔟 |
| gen. | sleep apnea | 睡眠時無呼吸 |
| gen. | n sleep apnea syndrome | 睡眠時無呼吸症候群 |
| proverb | exp sleep brings up a child well | 寝る子は育つ |
| gen. | n sleep cycle | 睡眠周期 |
| gen. | sleep deeply | 眠りこむ |
| gen. | sleep deeply | 眠りこける |
| gen. | sleep deeply | 眠り込む |
| gen. | sleep deprivation | 睡眠遮断 |
| gen. | sleep deprivation | 断眠 |
| gen. | n sleep deprivation | 現責め (as a form of torture) |
| gen. | n sleep disorder | 睡眠障害 |
| gen. | exp sleep four hours and pass, sleep five hours and fail | ４当５落 (when cramming for university entrance exams) |
| gen. | exp sleep four hours and pass, sleep five hours and fail | 四当五落 (when cramming for university entrance exams) |
| gen. | sleep in an awkward position and wake with a crick in neck | 寝違える |
| gen. | sleep in peace | 枕を高くして眠る |
| gen. | sleep-inducing | 睡眠誘発 |
| gen. | sleep inducing drug | 睡眠導入薬 |
| gen. | n sleep inducing drug | 睡眠導入剤 |
| gen. | sleep like a baby | 泥の様に眠る |
| inf. | sleep like a baby | 泥のように寝る |
| inf. | sleep like a baby | 泥の様に寝る |
| gen. | sleep like a baby | 泥のように眠る |
| gen. | sleep like a log | 泥のように眠る |
| gen. | sleep like a log | 泥の様に眠る |
| inf. | sleep like a log | 泥のように寝る |
| inf. | sleep like a log | 泥の様に寝る |
| gen. | sleep like a log | 眠りこける |
| gen. | n sleep medication | 睡眠薬 |
| comp., MS | sleep mode | スリープ モード (A power-saving state that allows the computer to quickly resume full-power operation (typically within several seconds) when you want to start working again. All open documents and programs are saved to memory before the computer enters the low-power state) |
| construct. | sleep mode | ねむりモード (nemuri-mōdo) |
| gen. | n sleep onset REM period | 入眠時レム期 |
| gen. | n vs sleep over | 外泊 news2 nf40 |
| gen. | n sleep paralysis | 金縛り news2 nf40 spec2 |
| gen. | n sleep pattern | 睡眠パターン |
| gen. | n vs sleep-puking | 寝ゲロ |
| gen. | n sleep soundly | 春眠 |
| gen. | sleep substance | 睡眠物質 |
| gen. | exp sleep talk after you go to sleep | 寝言は寝てから言え |
| gen. | n sleep-talking | 寐語 |
| gen. | n adj-no sleep-talking | 寝言 ichi1 |
| construct. | sleep timer | 消し忘れ防止タイマー (けし・わすれ・ぼうし・たいまぁ) |
| gen. | sleep together | 肌を合わせる (for a man and a woman) |
| gen. | sleep together | 肌を合せる (for a man and a woman) |
| gen. | sleep together | 体を重ねる |
| gen. | sleep together | 枕を交わす (for a man and a woman) |
| obs. | sleep together in the same bed | 枕藉 |
| obs. | sleep together in the same bed | 枕籍 |
| obs. | sleep together using books as a pillow | 枕藉 |
| obs. | sleep together using books as a pillow | 枕籍 |
| obs. | sleep together using each other's bodies as pillow | 枕藉 |
| obs. | sleep together using each other's bodies as pillow | 枕籍 |
| gen. | n sleep-walking | 無遊病 |
| gen. | n sleep-wear | 寝衣 |
| gen. | n sleep-wear | 寝巻 ichi1 |
| gen. | n sleep-wear | 寝間着 ichi1 news2 nf42 |
| gen. | n sleep-wear | 寝巻き ichi1 |
| gen. | sleep well | 寝付がいい |
| gen. | sleep well | 寝付きがいい |
| gen. | sleep well | 寝つきがいい |
| gen. | sleep while lying on stomach | 腹這う |
| gen. | sleep with | 懐く |
| gen. | sleep with | 抱く ichi1 |
| gen. | sleep with another person's wife | 人妻と寝る |
| gen. | exp sleep with one eye open! | 月夜の晩ばかりじゃない |
| gen. | sleep without fear | 枕を高くして眠る |
| gen. | sleep without turning over | 寝相が好い |
| gen. | sleep without turning over | 寝相がいい |
| gen. | slow wave sleep | 徐波睡眠 |
| gen. | n vs sound sleep | 熟眠 |
| gen. | n vs sound sleep | 熟睡 news2 nf43 spec2 |
| gen. | n vs storing up sleep | 寝溜め |
| gen. | n vs storing up sleep | 寝だめ |
| gen. | talk in sleep | 寝言を言う |
| gen. | adv talking in sleep | もにゃもにゃ |
| gen. | adv talking in sleep | むにゃむにゃ |
| gen. | n the first sleep | 一眠 (of silkworms) |
| gen. | v1 vi to be able to sleep | 寝れる |
| gen. | exp v1 to be unable to sleep | 眼がさえる |
| gen. | exp v1 to be unable to sleep | 目がさえる |
| gen. | exp v1 to be unable to sleep | 眼が冴える |
| gen. | exp v1 to be unable to sleep | 目が冴える |
| gen. | adj-i unable to sleep well | 寝苦しい news2 nf38 spec2 |
| gen. | n vs adj-no winter sleep | 冬眠 ichi1 news2 nf34 (とうみん) |
| gen. | n vs without sleep | 徹宵 |
| gen. | n yoji without sleep or rest | 不眠不休 news2 nf47 |
| gen. | exp adv without sparing time for sleep | 寝る間も惜しんで |
| slang | work without sleep or rest | 枝る after Yukio Edano, Chief Cabinet Secretary during the 2011 earthquake |