Good bed for what it is.  It looks good and works with the memory foam mattress that I purchased.  It is composite wood - however, it is VERY heavy and sturdy.  Once it is assembled there is no moving it around.  When the time comes to move I'm pretty sure the bed will be broken down and disposed of because I will have no clue how to put it back together.  The picture doesn't show it, but in addition to  the 3 vertical slats there is a bunky board included as well which is a roll of slats (about 15) that span the width of the bed.  

Pros: Good value, fairly easy assembly (2 people recommended), great mattress support
Cons: VERY heavy, probably won't be easy to reassemble when the time comes to move