A coworker of mine needed a riser for his desk (as he's 6' 4" and couldn't sit comfortably at his desk) and asked me to 3D print one for him. This is made for a 4" lift on a desk, but I'm thinking about using them on my bed as well. I modeled them after the bed riser you can buy at the store, which is obviously stronger, but these do the job just as well. I've updated and uploaded another model that is compatible with the purchasable bed risers that sit at 5.25", so that I can use them simultaneously without having to print six new 4" ones.