In this area, south central Pennsylvania, we use A. C. Moore and Joann Fabrics for most fabric needs. Both carry camo material in many different colors.
abatureoutpost.com sells camo netting in bulk, for a good price. they have a very wide range of styles and selections, that can be applied to any camo netting needs.
An online store called persundresses.com sells camo dresses, so it would be worth looking there. Another good place to try would be eBay where there is often a wide selection.
Pants with a camoflage pattern.
Realtree, I have one.
A camo comforter is a comforter that is made of a fabric that resembles a camouflage type print. They have become very popular and now come in a variety of colors rather than the typical green, beige and brown shades of regular camo prints.
Camouflage gear is typically dark green clothing and equipment that blends in with grass and nature. ArmyNavyShop, and RealTree are online retailers that sell camo gear.
The most common brand of camo hats is the line available through Zeiss. You can also find unbranded camo hats at your local Walmart or Target retail store.
There are many places where one can purchase camo pants. Some of these places include, but are not limited to, Urban Outfitters, Nordstrom, and Sears. They are generally available in these store as well as on the store's online website. Many online sites such as ebay and Amazon have camo pants for sale as well.
To hide oil and dirt stains.
Under Armour Camo is a clothing company and is mostly used for hunting purposes. Specially made fabric keeps the body warm without the excess weight. Therefore is also enjoyed by all outdoor enthusiasts.
The same exact reasons you'd use sheets in the first place. The camo pattern is just a color/pattern choice. Nobody in a tactical environment is going to have a tactical bed which they put camoflage sheets on.
Under Armour Camo Clothing can be purchased at the brands online retail store Bass Pro's online and retail store, Amazon, Ebay, and most sporting good stores during hunting seasons.