Website and data research by 101Leafy.
Sleep Gem
睡眠の秘石
ConsumablesUsableBattle
Chance of inflicting Sleep to all foes.
Buy 400Sell 100Max held 20
Skill 
Lullaby
How to get it
Treasure Chests
| Area | Count |
|---|---|
| Temple of Eternity | 1 |
Drops
| Demon | Rate |
|---|---|
| Incubus | 10% |
| Bugs | 10% |
| Sarasvati | 100% |
| Yamata-no-Orochi | 100% |
Miman rewards
| Shops | Set | Miman found |
|---|---|---|
| Cadaver's Hollow | Ailment Gem Set ×4 | 65 |
| Cadaver's Hollow | Ailment Gem Set ×8 | 125 |
Quests
| Quests | Type |
|---|---|
| The Sleeping Sands ×2 | The quest asks for it |