Nightwears are a comfortable attire worn during the night to get a peaceful sleep. There are various words that can be used as synonyms for nightwears. One such word is "nightclothes," which refers to the clothing worn in bed at night. Another similar term is "sleepwear," which includes any clothing worn during sleep, such as pajamas or nightgowns. "Nightgowns" are another term used specifically for long, flowing dresses worn for sleeping. "Pajamas," on the other hand, are a combination of loose-fitting trousers and a shirt, typically made of cotton or silk. Finally, there is "nightdress," a term that can refer to a variety of clothing, including nightgowns, robes, or nightshirts.