What are the dimensions of the insides of the drawers? Do the insides of the drawers have any protective sealant applied so that clothes don't get stained over time?

The inside of the drawers are 32"w x 14.25"d x 5.25"h and the lower drawer is 32"w x 14.25"d x 9.5"h. The inside the of drawers are sealed and it will not stain your clothing.