寝る【ねる】
to sleep (lying down), to go to bed, to lie in bed, to lie down, to sleep (with someone, i.e. have intercourse), to lie flat (e.g. of hair), to lie idle (of funds, stock, etc.), to ferment (of soy sauce, miso, etc.)
寝室【しんしつ】
bedroom
就寝【しゅうしん】
going to bed, retiring (for the night)
寝具【しんぐ】
bedding, bedclothes
寝台【しんだい】
bed, couch
寝泊まり【ねとまり】
staying the night, lodging (at)
寝込む【ねこむ】
to fall fast asleep, to be confined to one's bed, to be laid up
寝技【ねわざ】
pinning technique (in wrestling or judo), underhanded dealings
寝袋【ねぶくろ】
sleeping bag
寝床【ねどこ】
bed, berth, crib, cot, kip, bedroom
転び寝【ころびね】
dozing
寝不足【ねぶそく】
lack of sleep, insufficient sleep
寝返り【ねがえり】
turning over in bed, rolling over, tossing and turning, betrayal, double-crossing
寝苦しい【ねぐるしい】
unable to sleep well
寝食【しんしょく】
bed and food, eating and sleeping
寝起き【ねおき】
lying down and getting up, waking, getting up, living (with), staying (with)
寝そべる【ねそべる】
to sprawl, to lie sprawled, to stretch oneself out, to lie relaxed on one's side
寝顔【ねがお】
sleeping face
泣き寝入り【なきねいり】
crying oneself to sleep, giving up in frustration, accepting meekly, being compelled to accept a situation
寝転ぶ【ねころぶ】
to lie down, to throw oneself down