nighttime diaper

== English == === Pronunciation === === Noun === nighttime diaper (plural nighttime diapers) (Canada, US) An extra-bulky and absorbent diaper which is intended to be worn during sleep for prolonged wetting, usually by an infant who is a heavy wetter, or by someone with urinary incontinence. A diaper or training pants intended to be worn during sleep to prevent bedwetting, often by young children. ==== Synonyms ==== night diaper overnight diaper sleep diaper (informal) (Ireland, Commonwealth) night nappy, nighttime nappy, overnight nappy, (informal) sleep nappy