@Sky Blazer
Except that they would have to be somnambulating to not notice that they are putting on the wrong clothes because it is pretty obvious that Starlight is wearing Sunburst’s bathrobe while Sunburst is wearing Starlight’s two piece button-down pajama top and bottoms. Starlight would have had to close the robe, tie the cord, and cinch it without realizing it. While Sunburst would have had to put the pants on one leg at a time and pulled them up. Also, he would have had to put the shirt on, one arm at a time, then close each button individually. Also without realizing it.
@bustoblaster
There is hardly effort in wearing each other’s clothes. It could be more to do with not being fully awake and realising what’s happening until somebody says something.
@Einsman
It means that they have holes in their robes, and, upon waking up, make a conscious decision to stick their tails through them. Is that not strange to you? I never noticed it before! I think its weird.