This archetype revolves around defensive late game power and the ability to halt your enemy’s minions while building up your own. Be careful, Sleep benefits your enemy if you are applying the Sleep effect carelessly on enemy minions without taking advantage of it against them, and if you aren’t defending your Sleeping minions. Apply Sleep to your minions, build up their health, and keep them alive throughout the battle, allowing them to take the majority of damage. Then use that health to dish out even greater retaliation damage! Even a 1/1 can have an absurd amount of health if it is kept sleeping long enough with high Sleep Potency. Usually uses Sheep minions.
^ Taken directly from my document.
You are welcome to add any sort of Sleep minion or spell ideas but keep in mind about how the Sleep effect works as a whole. The document lists quite a few I have come up with myself. They also don't have to all be Sheeps if they are minions