expression
have an uneasy conscience; feel guilty
Describes the feeling of guilt or regret that disturbs one's peace of mind, often after doing something wrong. Used in set phrases like 寝覚めが悪い思いをする.
See also: 寝覚めの悪い
彼を騙したことが寝覚めが悪い。
I feel guilty about having deceived him.
あんなことを言
I feel uneasy about having said such a thing.