Medics Away elective fees are based on two students sharing, so of course it is perfectly fine for a couple to be accommodated together.
No, all accommodation is provided in the central elective locations and on all activity breaks. If students decide to venture beyond the range of the elective and the activity breaks provided, then Medics Away is not responsible for paying for your accommodation.
The basic rate for the elective includes all your accommodation costs. Accommodation is based on two students of the same sex sharing a room. For a supplementary charge, Medics Away is able to provide you with single occupancy accommodation (available in only certain elective destinations). This charge is calculated based on the individual requirements of each student. Please refer to the Activity Breaks relative to the destinations you are interested in. If there is no option for single occupancy in the list, it is not likely to be available.
You will not need a sleeping bag for any of the Electives or Activity Breaks. In Peru and Belize for instance, sleeping bags are provided (at a small charge of $10 USD, for cleaning costs) for treks and overnight ATM tours. Most other electives do not require the facility of sleeping bags.