Nightwear

Nightwear or nightclothes are clothes designed to be worn for sleeping however they aren't limited to that. Depending on the climate, environment, culture and preference, they also include casual clothes, sports attires and birthday suits. The style of nightwear worn may vary with the seasons, with warmer styles being worn in colder conditions and vice versa. Some styles or materials are selected to be visually appealing or erotic in addition to their functional purposes.

Trivia

 * Nightwear such as pajamas are designed for both genders.
 * Nightwear such as negligee can be worn as underwear.