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You will probably want to look at ceiling or hanging lighting, as well as supplemental lighting like lamps and possibly a lighted mirror. Bring your room measurements when shopping so an expert can advise you on how much lighting you need to fill the space. Avoid lamp shades that are overly opaque, as they will provide dimmer light and less functional value. If the room is large, you can place the bed opposite from the door as a focal point. If the room is smaller, place it against the wall so that it does not obstruct the path to other zones. Avoid placing the bed under a drafty window. Other items to consider for the sleeping zone are: pillows and bedding, a headboard, and night stands with lamps. When choosing a pillow, you can test different pillows up against a wall to see how they feel. For bedding, the higher the thread count, the more soft and durable it will be. Avoid silk or velvet headboards, as they can discolor quickly. The ideal depth for night stands is 25" or less. The study zone should have a desk, a comfortable chair, good lighting, and basic school supplies. One or more letter trays are a helpful way to temporarily set paperwork aside for filing later. For small spaces, a corner desk with a chair that can be pushed underneath will work well. Organizing a closet will optimize the space you already have for storage. Bins and other closet organizers can make the most of a small space. Add a second clothing rack low in the closet for pants and shirts; this will double the hanging space. Make sure to allocate a place for shoes, and you may want to designate hanging space for belts, scarves and other fashion accessories. Mounting a pegboard inside the closet door creates an extra place to hang fashion accessories. Consider adding a place she can get ready for school: a vanity area with a desk, chair, lighting and mirror. Or, the desk and study area can double as a makeup vanity. Come up with other zones as space allows, geared towards your daughter's specific tastes. For example, she may like a reading zone with a comfortable recliner, or she may prefer a bean bag chair and plush rug for sitting and talking on the phone. If she plays an instrument, create a zone for that. A desk should be full of drawers for storage and can be supplemented with a hutch on top for storing extra supplies. You can purchase an ottoman that doubles as a covered storage bin, and a bed with built-in storage underneath. Keep traffic flow in mind leave about a 3 foot path of walking room. To do this, try to have every piece offer some type of functional purpose. Keep your eye out for multi-purpose pieces, and you will begin to recognize them as you shop. There are even ironing boards that also function as a floor mirror! Vertical shelving doesn't use up much floor space but offers a place to display photos, trophies, and collectibles. Floating shelves are an economical and space-saving way to hold items like lightweight books, DVDs and CDs. If possible, work on designating, organizing and labeling bins with your daughter. Decide together where the bins should go. Devise a system for organizing school paperwork, such as a box of accordion folders. Window treatments may be drapes, blinds, or other aesthetic window coverings. Hold window treatments up to the light in the store or showroom to see how the light comes through them. Pleat the material in your hand if you can and see how it drapes. Blinds will need mounting brackets and the tools to install them. Curtains will need brackets, relevant hand tools, and a decorative hanging rod. Remember to buy appropriate hardware to install window treatments. Offer to let your daughter select items with the project's budget in mind. Involving her in these decisions will give her a sense of pride in the design, and it's also a great way for you two to bond! For example, let her choose bed linens, window treatments, and/or upholstered furniture pieces. Have her compare the cost of each item she selects to the budget to help her understand decision-making that considers finances. Discuss her ideas and use this process as a way of learning to compromise with each other in a positive way. If her favorite color is hot pink, for example, use it for accents like throw pillows or picture frames, rather than more permanent items like furniture. If she disagrees, convey to her the importance of longevity when it comes to purchasing decisions. If she has her heart set on hot pink walls, for example, try offering to allow her to one accent wall in her favorite color. A single wall is easier to paint over over than an entire room.

Summary:
Choose lighting sources for function and aesthetics. Create a sleeping zone. Create a study zone. Remember the importance of closet storage. Create vanity and hobby zones. Get functional furniture and arrange it to save space. Use shelving that saves room. Organize boxes and bins together. Test out window treatments. Keep her involved in the process as much as possible. Incorporate her feedback wisely.