nighttime diaper

Noun

 * 1) An extra bulky and absorbent diaper which is intended to be worn during sleep for prolonged wetting, usually by an infant or someone with urinary incontinence.
 * 2) A diaper or training pants intended to be worn during sleep to prevent bedwetting, often by young children.
 * 1) A diaper or training pants intended to be worn during sleep to prevent bedwetting, often by young children.
 * 1) A diaper or training pants intended to be worn during sleep to prevent bedwetting, often by young children.
 * 1) A diaper or training pants intended to be worn during sleep to prevent bedwetting, often by young children.