Perhaps I could offer a suggestion for the Caliber people? The wooden base for the bed is made from particle board. Whenever I move the mattress, it leaves many many slivers of that particle board on the floor & also stuck to the bottom of the mattress. Needless to say, you don't want to step on those slivers with a bare foot! I suggest they use press-board for future builds. I installed a plastic sheeting over the particle board which makes moving the mattress a lot easier & eliminates the particles-of-wood-on-the-floor issue.