That’s not to say that sleepwear has made a comeback recently thanks only to TikTok. Since 2018, nightgowns took a fashion-forward turn in the design department, with many brands like Sleeper Loup Charmant , and Skin creating silhouettes suited for both inside and outside wear. Even so, now that the nightgown trend has TikTok’s stamp of approval, it’s safe to say that the age of the nightie has officially hit its peak.