These trendy nightgowns will make you rethink your sleep attire A little romantic, a little old school, the nightgown should be a bedtime wardrobe staple. But somehow their reputation went from darling and dreamy on Clara in “The Nutcracker” to suffocatingly oppressive flannel mumus, without any stops in between. Fortunately for us, the Nightgown is seeing a resurgence in quarantine—probably because they’re both glamorous and comfortable, with the option to snuggle up on your legs when you’re cold or feel wonderfully breathable when things chill down.