Campina, thanks so much for the input on the murphy bed. I'm especially keen on reading that you can have a 5" topper on top of the existing mattress. After thinking about it that might actually be the perfect solution. 75% of the time when we are camping the bed would probably never get put up and then when we are taking it to bike races for the day the bed can stay up and won't be in the way. Still leaning towards a slide, though just for the extra floor space. My kids are still at the age where the floor is the primary play area - whether it's indoors or outdoors.
