It is me, or is Merry's sleepwear kinda like a skirt?

Edit: I found a image of Manatsu in her sleepwear/pajamas and i tried to compare it with the sleepwear that both Renko and Maribel were wearing... Noneless to say: Manatsu looks like she's wearing some shorts (similar to renko's, but they were a bit more shorter, renko's shorts ends near her knees, while Manatsu's show more of her legs) , but they look quite folded similar to skirt (just like Merry's, but merry's skirt ends on her knees too). (regardless, they're still shorts though... and yeah still doesn't kick the fact that Merry choose a skirt to sleep in though...)