We did the Peru trip last year and we absolutely loved it!
In Lima, the hotel was the Marriott. There were two large connecting rooms one with a king and the other with two double beds. My three kids ages 6,9,12 fit perfectly!
In the Sacred Valley the hotel used was Sol y Luna. These were small cottages and we were given a family room. There was a king bed with an added single on the first floor with two double beds on the loft portion. In the Hotel Libertador Cusco we were given a large suite with one room with a king, another room with a double sofa bed and another room with two double beds (also 2.5 bathrooms!). The entire experience was more than we could have asked for!