Here are some ideas for summer sleeping!
The first is a bunk bed,made by the builder for a house on the Vineyard. What I loved was the rungs on the side to scramble up to the top bunk. I thought it was all very nicely done.
The second example is a set of twin beds on these big red wheels. This is so clever-the beds can be moved around easily to create a double bed or two singles. Great idea for the many visitors with different needs that arrive in the summertime!