Jane Fonda has one staple in her nighttime wardrobe. “A flannel nightgown — because I’m single,” Fonda, 87, quipped to The Times on Saturday, July 19. “I never wore them when I was with a man.” While ...

This is not your grandmother’s nightgown. Or maybe it is. The same style of sleepwear that was once strictly relegated to bedrooms and boudoirs has now become the summer dress of the year. Reformation ...