I just dont understand why you wouldnt just buy a 12x12 tile and stick it at the bottom.. thats the exact dimensions of your current enclosure. So much easier, safer, nicer looking (imo) and wayyy easier to keep clean and sanitary. When you have sand you rarely get it all (used sand with beardeds) Furthermore, you have a baby-baby leo.. i just dont want to see anything happen to it, especially something that could be so easily avoided. Sand you have to replace, over time.. buy one 12x12 tile for what $3 bucks? and your set for life.
However, everyone is different and you have to decide what works best for you.. again Desiree, im just looking out for your animal. I would hate to hear it died or needed medical attention over something totally preventable. I certainly wouldnt steer you down the wrong road, especially on an animal i hand selected for you. (not suggesting anyone else would)