Do unconscious characters get will saves?

Question

If a character is unconscious (for example, negative hit points, NOT sleeping) and a spell targets them that allows a will save, can they take it?

While I know they count as 'willing' for spells that specifically call out willing targets, I've been unable to find a solid answer one way or another.

Note: I've read this question. but not only is that 3.5 not pathfinder but it still doesn't conclusively answer the question.

Edit: I haven't been able to find any ruling to back up my assumption that helpless characters don't get reflex saves, so I've removed it.

Answer 1

Yes.

Unconscious creatures get to make saving throws as normal, with the exception of having a -5 Dex modifier. From the Condition listing:

Unconscious: Unconscious creatures are knocked out and helpless. Unconsciousness can result from having negative hit points (but not more than the creature's Constitution score), or from nonlethal damage in excess of current hit points.

and further from helpless:

Helpless: A helpless character is paralyzed, held, bound, sleeping, unconscious, or otherwise completely at an opponent's mercy. A helpless target is treated as having a Dexterity of 0 (–5 modifier). Melee attacks against a helpless target get a +4 bonus (equivalent to attacking a prone target). Ranged attacks get no special bonus against helpless targets. Rogues can sneak attack helpless targets.

[Helpless creatures are subject to coup-de-grace]

Nothing here limits the availability of saving throws. Neither do the descriptions of the Saving Throws themselves:

Fortitude: These saves measure your ability to stand up to physical punishment or attacks against your vitality and health. Apply your Constitution modifier to your Fortitude saving throws.

Reflex: These saves test your ability to dodge area attacks and unexpected situations. Apply your Dexterity modifier to your Reflex saving throws.

Will: These saves reflect your resistance to mental influence as well as many magical effects. Apply your Wisdom modifier to your Will saving throws.

In absence of primary rules forbidding saving throws to unconscious creatures, they aren't.