We bought this bed because we wanted something our cats could not get underneath and that our senior Labrador can jump on. This bed accomplished both goals. We have a new foam mattress on ours without a boxspring and it has been about a week with no problems . It's a sturdy bed and the lip on the edge isn't so obtrusive that we run into it. That lip is also strong enough to act as a step for our extra large dogs. The box was a mess when it showed up, but it's packed REALLY well. I knocked off a star because the description says it is headboard adaptable but we still need to get an additional piece to attach our headboard.