noun which may take the genitive case particle 'no', noun
bedridden; confined to bed
Describes a person who is unable to get out of bed, typically due to illness or old age. Often used in medical or caregiving contexts.
祖母は寝たきりになってしまった。
My grandmother has become bedridden.
寝たきりの患者のケアは大変だ。
Caring for bedridden patients is demanding.
寝込む means to stay in bed due to illness, but it implies a temporary condition, whereas 寝たきり suggests a long-term or permanent state.
Compound of 寝た (past form of 寝る 'to sleep') + きり (from 切る 'to cut off', here meaning 'completely' or 'without interruption'). Literally 'having slept and then cut off', implying a state of being permanently in bed.