I bought this as a frame for my toddler.  I wanted to get the bed off the floor but not have it so high that he would hurt himself when he inevitably rolls off.  We placed the bed directly on the platform without a boxspring and it works perfectly.  I have slept on the bed a few times with my kiddo and have no complaints.  The wood slats that support the bed are fairly thin so I suspect that if little monkeys were jumping on the bed the supports might not hold up.  But for normal use they should be fine.  Oh, the directions for putting it together were legitimately wrong in two ways (telling you to assemble things in an order that would prohibit subsequent assembly steps) but it's really quite easy to assemble so I figured it out without an issue.