Add 1 "Nemleria" monster from your Deck to your hand, then, if you have "Dreaming Nemleria" face-up in your Extra Deck, your opponent cannot activate cards or effects this turn when a "Nemleria" monster(s) is Normal or Special Summoned.
You can place this card from the GY on the bottom of your Deck, then target 1 "Dreaming Nemleria" you control; add it to the Extra Deck face-up.
You can only activate 1 "Sweet Dreams, Nemleria" per turn.