So, after reading the other thread about this I had a brain spasm and got all creative-like. The first bit I stole from blalien 'cause I'm a blatant idea thief but it's the second bit where the true genius kicks in anyway.
Extended Resting in Armour
When engaging in an Extended Rest in armour, a person has to pass an Endurance check or lose one healing surge after regaining all healing surges from the Extended Rest. The DC for the check is 10 for wearing light armour and 15 for heavy armour.
Dodge Bonus for Armour Proficiencies
Armour wearers don't forget how to dodge blows just because they have no armour on. They gain a dodge bonus to their AC equivalent to one less than the highest bonus light armour they can wear or two lower than the highest bonus heavy armour they can wear, when not wearing any armour. This bonus is lost whilst the character is surprised or when they are affected by any of the following conditions: dazed, immobilised, stunned, restrained, slowed, unconscious, dying, dead.
Extended Resting in Armour
When engaging in an Extended Rest in armour, a person has to pass an Endurance check or lose one healing surge after regaining all healing surges from the Extended Rest. The DC for the check is 10 for wearing light armour and 15 for heavy armour.
Dodge Bonus for Armour Proficiencies
Armour wearers don't forget how to dodge blows just because they have no armour on. They gain a dodge bonus to their AC equivalent to one less than the highest bonus light armour they can wear or two lower than the highest bonus heavy armour they can wear, when not wearing any armour. This bonus is lost whilst the character is surprised or when they are affected by any of the following conditions: dazed, immobilised, stunned, restrained, slowed, unconscious, dying, dead.