A literal boutique hotel, this is a try-before-you-buy extension of the showroom for Coco-Mat, the excellent Greek-made all-natural mattresses. It's all very chic. The cheapest 'Sleep Tight' rooms don't have street views or balconies, but are quieter. There's a nice honour-system bar and good breakfast, served on the roof terrace. And, oh, those beds!
Close by is the larger Coco-Mat Athens Jumelle.