Don't let the sunny days of autumn slip away without booking yourself a little break. A long weekend in a country cottage, a few cosy nights in a shepherds hut, or a seaside stay on the coast - autumn is just perfect for a laid-back getaway; a chance to chill out, recharge and enjoy those final mild and golden afternoons before the weather turns. To give you some autumnal inspiration, we've chosen 20 of our favourite CoolStays around the UK with availability this September and October.