This is much more than a unique bed. My son had a lot of fun crawling through the spaces, swinging around the lines, and "sailing" to far locations. We'd lean toward an island, then turn on the ceiling fan and set sail. His pals also enjoyed coming over to play with it.
I designed it for him because I couldn't find anything similar. It's rigged, with custom-cut sails and everything. There is no plastic present. Total weight is around 80 lbs. It disassembles into three sections and two masts. With only a few bolts, it's simple to put together. The wood on the bow and stern was steam molded the old fashioned way. A full-size mattress is 14 inches longer than a twin mattress.