1) Article of clothing 2) Clothing 3) Night clothes 4) Nightclothes 5) Nightdress 6) Nightgown 7) Nightie 8) Nightshirt 9) Pyjamas 10) Vesture 11) Wear 1) Jammies 2) Lingerie 3) Negligee 4) Nightclothes 5) Nightdress 6) Nightgown 7) Nightie 8) Nightshirt 9) Pajama 10) Pajamas 11) Pjs 12) Pyjamas 13) Teddy 
Nightwear – also called sleepwear, nightclothes, or nightdress – is clothing designed to be worn while sleeping. 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 purpo...
sleepwear noun garments designed to be worn in bed
night clothes.