Inspire yourself with us and find interesting DIY furniture ideas in this blog post. You can do lot of useful peaces our of pallets. They are free or a least very cheap and with little creation you can make yourself great sofa or bed.
All you need to do if to buy some nice fabric and upholister peace of foam. On the bottom fut some rubber legs or casters. Decorate seating with some nice cushions. You can leave yourself little space at the end and use it like a practical coffee table.
If you are more skilled woodsman you can make your self table like on the picture above. Wooden table made out of one peace is definitely great design peace and interesting DIY furniture project. Legs can be metal like on the picture or wooden