Dream spells could be a nice way to deal with day long buffs and/or healing effects...
Take the following list as my daily brainfart
- Resourcing dream : target is considered "healed" (ie : as if someone succeded on a heal check on them) in regards to rest and heals twice (or thrice) the normal amount of HP during the night
- Dream of health : target wakes cured of any conditions/poisons/diseases
- Dream of blessing : target wakes cured of any curses
- Appeasing dream : cast on sleeping target, target is immune to fear for the next day
- Refreshing dream : target is immune to fatigue for the next day
- Arcane might dream : target arcane caster gains a spell slot (highest level) for the day
- Divine might dream : target divine caster gains a spell slot (highest level) for the day
- Enhancing dream : target caster gains +1 to spell DC for the day
- (Metamagic) dream : target caster may use (metamagic feat) without augmenting the spell level once during the next day
- Dream of war : target gains +x to hit for the day (x depends on caster level or dream spell level)
- Dream of carnage : as above but bonus to damage
- Dream of P**** Envy : target may enlarge self once during the next day
Spell stats and fluff left to your discretion
Hope this helps