It is very important, in any sleeping balcony, to be protected from the

wind by a sash on one or two or--in very windy places--three sides
It is very important, in any sleeping balcony, to be protected from the
wind by a sash on one or two or--in very windy places--three sides. But
of course sleeping out-of-doors does not reach its maximum efficiency if
there is too much protection, that is, if the sleeping-out place is so
shut in that very free currents of air are not secured. An outdoor
porch really ceases to be an outdoor porch, when enclosed on four sides.