While the Cycladic island of Serifos has stayed blissfully under the radar for most tourists, savvy Athenians have been quietly snapping up property on this sleepy island while preserving its dusty, sleepy charm. COCO-MAT Eco Resort, opened by the eponymously named Greek sleep-product company, is emblematic of this mindset: Its 13 rooms were reclaimed from stone miners houses built in 1910 at the foot of a hillside, just steps from the sand and calm waters of Vagia Bay. The units are one- or two-bedroom, with bedrooms on the (cooler) bottom floor and the living space above, as well as a kitchenette; you choose your mattress preference from COCO-MAT’s sustainably made line. The Lounge Bar, carved out of stone on three sides, serves buffet breakfast in the morning, lunch and light snack during the day, and dinner in the evening – including right on the beach (for an additional charge). The hotel also supplies car or motorcycle rentals, should you want to explore the island, and also will arrange diving trips, excursions to different beaches, and, if you want to prepare some of your own food, they’ll do the shopping for you.