Good catch by sleepygecko on the temps! The min/max on temps from a comfort point of view should be around 70 and 82 degrees.
Bedding, there are several options available-
Bark-NOT GOOD, if you are feeding crickets, you have a VERY good chance of impaction- the gecko eats the bark after missing the cricket. This can kill you animal. 
Sand- Not so good, again impaction issues and it's just not what they are use to.
Repto Carpet- OK, I've not used this but it seems that this would both cover the esthetics and ease of clean up side of things. My only concern would be the little claws catching on the fibers.
PT- OK, good, great for clean up but not so nice to look at.
Unfertilized Dirt- Good, Would provide wonderful area to plant live plants. Clean up would be picking out the bigger pieces and letting the other naturally decompose. Many keepers have gone in this direction. (MAKE SURE IT'S UNFERTILIZED)
Ala Natural- Good, easy cleanup. I have gone this route. I purchase bunches of plastic/silk plants and scatter them on the bottom of the enclosure. Looks fairly natural and they love to hide under the leaves.
Good Luck and let us know your selection.
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