i would personally say Tuscan Beach

We looked into getting two interconnecting rooms at just about any 4/5* hotel for next year, so the daughter could take a friend. No one could guarentee we would receive this, or even two rooms next to each other. Personally think your best bet would be a family room/apartment.

Club Turban in between Marmaris and Icmeler have rooms that have a double bedroom with a full bathroom and a door leading to a twin bedroom with a shower room.Both rooms have flat screen TV and hair dryers.
Its available through Thomson.