When Spell casters regain their spells I thought that it was universal that they all needed 8 hrs of rest before hand. This only seems to be spelled out under the “spell” section for character creation under Wizards, not Clerics, Sorcerers or Bards, is this truly the case or am I missing something .
It's in the Magic section.
Daily Readying of Spells: Each day, sorcerers and bards must focus their minds on the task of casting their spells. A sorcerer or bard needs 8 hours of rest (just like a wizard), after which she spends 15 minutes concentrating. (A bard must sing, recite, or play an instrument of some kind while concentrating.) During this period, the sorcerer or bard readies her mind to cast her daily allotment of spells. Without such a period to refresh herself, the character does not regain the spell slots she used up the day before.
Clerics do not rest to prepare spells and never have. They pray at a pre-determined time of day.
Time of Day: A divine spellcaster chooses and prepares spells ahead of time, but unlike a wizard, does not require a period of rest to prepare spells. Instead, the character chooses a particular time of day to pray and receive spells. The time is usually associated with some daily event. If some event prevents a character from praying at the proper time, she must do so as soon as possible. If the character does not stop to pray for spells at the first opportunity, she must wait until the next day to prepare spells.
Wizards need 8 hours, but it does not need to be uninterrupted.
http://www.d20pfsrd.com/magic#TOC-Preparing-Wizard-Spells
Divine spells say that they are prepared the same as wizard spells with a few differences.
http://www.d20pfsrd.com/magic#TOC-Preparing-Divine-Spells