Every penny they make from this fundraiser will be spend directly on taking care of the animals.
From their site:
3rd Annual 5K/10k Run, Walk, or Sleep-in For the Animals
This year will be our best event yet! Our race is set up for people of all athletic levels, you can run either the 5K or 10K, or if running isn't your thing, the 5K walk is a very beautiful stroll thru Memorial Grove and City Creek Canyon. Not in the Salt Lake City area? No problem! You can still help out by signing up to sleep-in for the animals and still get a race shirt as well as helping out.
Details are found here.