Bedwear (12)
There are a few possibilities for this:
nightclothes
(Other definitions for nightclothes that I've seen before include "Items worn in bed" , "sleepers' get-up" .)
(Other definitions for nightie that I've seen before include "cover for retiring" , "Female bedwear" , "Bedtime attire" , "Clothing worn in bed" , "Lingerie worn in bed by women" .)
(Other definitions for pyjamas that I've seen before include "Bed clothes" , "Night attire" , "Pays jam poorly to wear them" , "Sleeping attire" , "Pays Maj poorly to wear them" .)