Our problem with modern sofa beds (now that they've resolved the metal bar-sticking-in-your-back-while-you-sleep issue) has always been where to store the bedding. The Havana Sofa from DWR solves that dilemma nicely.
The seat base is also a full storage compartment. Ingenious.
On top of that, it has simple, minimal lines, comes in two great neutrals (oatmeal and brown), and is deep enough that you could sprawl on it for entire weekends.
Now if we could just win the lottery so that we could pay the $3,300 price tag.