I spend an awful amount of time on my sofa. So do you I expect. I'm writing this whilst curled up on our brown leather couch. It's worthwhile investing in a good sofa. Cheapy sofas won't last long, so you are better off spending a sensible chunk of money on something perfect that won't fall apart in two years' time.
HelloSofas.com make each sofa specifically to your measurements, with dozens of fabrics and colours to choose from. I picked my favourite designs that wouldn't look out of place in a space ship. Very city-living cool, or bachelor pad corner sofas for gathering round the XBox.