Not the first prop to wake me up. We were on the beach in the south of France in Theoule-sur-Mer about 10 miles west of Cannes, which latter has a major GA airport with periodic business jets climbing across the bay in front. Nothing of consequence, and I fall asleep in the afternoon sun, dreaming of all sorts, eventually including R-1830s it seemed. My, that's a loud noise in the dream ... woke up suddenly and there it was, climbing so slowly in front of us, the heritage Swiss DC-3. Disappeared southwards out over the Med, but returned at altitude up in the heat haze 10 minutes later, when it presumably had enough height now to head northwards over the mountains. Mrs W said I had slept right through several biz-jets, but woke up pronto for this !