Shardie hocked her arms and armour ?

Shardie in the courtyard of Buckmoth Castle walks around barebreasted and unarmed, in skirt only.

Seems I just encountered her

Seems I just encountered her when she had her morning wash.

I met her half naked around 7:20 a.m. Now it is 8:04 a.m., and she is in full armor again.

Her sleep AI probably has her

Her sleep AI probably has her unequip armor and she doesn't have other clothing in inventory.

Thanks, this explains also why in other places, for example Pelagiad (if I remember correctly), guards walk around in shirts during the night. Their sleep AI doesn't prevent them from sleep walking, it seems ...