Tome of Sleep
The item “Tome of Sleep” is a book in WoW Forever: Common quality, item level 8, usable at level 8.
Item Level 8 · Requires Level 8
| Tome of Sleep Item Level 8 Classes: Mage |
| Requires Level 8 "Teaches Sleep (Rank 1)." Sell Price: 50 |
Source
Unknown so far. We'll add the source as soon as we have data.