Maenads generally prefer to live and work in armor if it's available, but Shieldwardens like yourself have taken this to its logical conclusion.
Prerequisites: Maenad, proficiency in any armor.
Benefit: Your armor check penalties for armor you are proficient with are reduced by 1 and is not doubled on Swim checks. You are not automatically fatigued for sleeping in medium armor While psionically focused and wearing armor you are proficient with, you gain a +1 deflection bonus to your Armor Class.
Special: If you possess both the Shieldwarden of Maenae and the Endurance feats, you are not fatigued if you sleep in heavy armor.
A fighter who meets the prerequisites may select this feat as one of his fighter bonus feats.