I used Anna's plans, but I wanted to reduce the weight of the bed so I replaced the 2 x 10's with 1 x 8's and I made the cross slats 1 x 4's face up. The 1 x 4's also create a platform to put your bed on so no need for ply wood or box springs. This is still very sturdy, but about half the weight as the original plan.
Thanks Anna for the great ideas and plans! Now I am on to the farm table, wish me luck!