In Wrath of the Lich King it is item level 226 and requires level 80. In MoP Classic it is item level 200, requires level 80 and sells to vendors for 1c.
Read from the World of Warcraft client build files (JournalEncounterItem, JournalEncounterCreature, Achievement) and the Blizzard Game Data quest API.
How Heroes' Dreamwalker Gloves Compares
Who It Suits
Leather is the armor type Demon Hunter, Druid, Monk and Rogue wear. With Agility or Intellect, Heroes' Dreamwalker Gloves suits Assassination, Outlaw and Subtlety Rogue; Brewmaster, Mistweaver and Windwalker Monk; Balance, Feral, Guardian and Restoration Druid; Havoc, Vengeance and Devourer Demon Hunter.
Similar Items
The 10 items nearest to Heroes' Dreamwalker Gloves (item level 35) in item level among Armor > Leather, Hands slot, from item level 29 to 39.
Blizzard numbers items as they are created, so the named items next to ID 39544 (39539 to 39549) were usually added in the same batch as Heroes' Dreamwalker Gloves: the same quest line, zone, vendor or reward set.