Greater Dreamless Sleep Potion

Greater Dreamless Sleep Potion is a potion that puts the consumer to sleep while restoring health and mana.

Source
This potion is made by Alchemists with a skill level of 275.

The recipe is sold by Rin'wosho the Trader on Yojamba Isle in Stranglethorn Vale. You must be Friendly with the Zandalar Tribe to purchase this recipe.