There's one on Monte Cooks Arcana Evolved, called the Somnamancer. It would need some modifications since it uses some spells, feats and monsters from that book. If you don't have the book I can post a resume of the class abilities later.
Heroes of Horror has feats for this.
Dreamtelling uses Knowledge planes checks to interpret dreams.
Oineromancy gives you bonuses in the dreamscape
Improved Oineromancy gives you extra spells known.
I'll try to do as much conversion as I can to facilitate. I don't think I can post it fully since I'm not sure if it's OGL.
Somnamancer
Requirements
Base Will Save Bonus: +5
Skills: Knowledge (Arcane): 8 ranks; Stealth: 2 ranks
Feats: Improved Iron Will
Special: Must be able to cast spells.
Class Skills
The somnamancer’s class skills (and the key ability for each) are:
Bluff (Cha), Craft (any) (Int), Diplomacy (Cha), Disable Device (Int), Disguise (Cha), Knowledge (arcane) (Int), Disable Device (Dex), Sense Motive (Wis), Stealth (Dex), Spellcraft (Int), and Use Magic Device (Cha).
Skill Points at Each Level: 6 + Intelligence modifier.
Class Features
Weapon and Armor Proficiency: Somnamancers are proficient in the use of simple weapons and light armor.
Spells: Increase at 1st,3rd, 5th, 7th, 9th and 10th.
Induce Sleep(Sp): At first level you can put one creature, with up to 2hd per somnamancer level, to sleep. Will negates, DC 10 + class level + Cha, lasts for 1d6+4 rounds even with harsh conditions and loud noises, lasts for 3d6+2 minutes in restful conditions or how much the target would normally sleep if he is already sleepy/tired. He can use this ability a number of times er day equal to his Charisma modifier (minimum 1). A somnamancer can put himself to sleep automatically without spending uses of this ability.
Dream Tracking(Sp): At second level, if the Somnamancer knows someones name or has an object from that person he can locate that person anywhere in the world. It takes a minute to attempt and only works if the target is asleep or fails a Will save with DC of 10 + class level + Cha. Anything that blocks divination also blocks this abilitie.
Dream Spy(Sp): Starting at 3rd level, the somnamancer can look into the dreams of any sleeping creature within 5 feet and see what it is dreaming about. This ability is a standard action that can be used at will.
Control Dream(Sp): At 4th level the somnamancer can control the dreams of creatures within 5 feet using Dream Spy. It is a standard action that can be used at will. He can cause Terrible nightmares that inflict 1d4 points of wisdom damage if the target fails a Will save, or cause a dream that seems prophetic or important, if the target fails a Will save they believe that what they learned in the dream is true or will be true for the following day, and they may act or think about things with that in mind. The DC for both is 10 + class level + Cha, but in the case of the 'prophetic' dreams it may increase or decrease deending how believable the dream is for the character.
Summon Dream Hunter(Su): At 4th level the somnamancer can summon a dream hunter once a day, lasting one round for class level. It upgrades to 1d4+3 dream hunters at level 8. Dream hunters have CR around 5-6, see with your DM another creature to replace him that can be dream themed.
Sense Dreamer(Su): At 5th level the Somnamancer can sense anyone sleeping in 50ft and discern the specific location with a standard action.
Steal Dreams(Su): After a 6th-level or higher somnamancer uses his dream spy ability on a subject, he can learn one fact about that subject: name, fondest wish, true love, greatest fear, location of the key to his locked vault, and so on. The information learned must come in the form of an answer no longer than one word per somnamancer level. The target gets a Will saving throw if the somnamancer tries to uncover a great secret. The DC is 10 + class level + Cha. Attempting to steal dreams takes one minute. A somnamancer can attempt it only once on a given subject in a 24-hour period.
Divinatory Dream(Su): The 7th-level and higher somnamancer can learn the answer to a single yes or no question asked in a dream, while he sleeps. The answer comes from the collective dream memory, not dissimilar to the akashic memory. That means if the question regards a subject no creature knows or has ever known anything about, the somnamancer gets no answer. Otherwise, the answer is always correct. The somnamancer can use this ability only once in a given 48-hour period.
Mass Induce Sleep(Sp): Works as Induce Sleep, but affects a number of targets up to the Somnamancers class level within 50ft. Can be used the number of times per day as Induce Sleep.
Dream Travel (Sp): Once per day, a 9th-level and higher somnamancer can dream about being in a new location and then wake up in that location. This ability works just like the teleport spell with DC 0 for the check required to travel successfully. The somnamancer can transport only herself and 100 lbs. worth of gear—no other creatures.
Dream Master (Su): At 10th level, a somnamancer gains the ability to use his dream spy, control dream, and steal dreams powers on anyone he finds via his dream tracking power. He can use dream travel to teleport to anyone he finds via his dream tracking power. His Dreamer Sense spands to 250ft.
Hope this helps :)