After looking at commercially available co-sleepers and being dissatisfied with what I found, I decided to build this one. The key to dimensioning the project was to use a standard crib mattress. The store-bought co-sleepers had mattresses that were too thin to provide any comfort at all. Height of the bed places the top of the mattress even with the big bed next to it. The style of the piece matches the existing bedroom furniture. My daughter, a nursing mother, wouldn’t be without it now. White oak was used throughout, with the exception of red oak trim on the legs (I have a pile of salvaged oak flooring). The bed is heavy enough that no locking provision was necessary to keep in next to the bed and makes it easier to move it for cleaning. Because I had to transport it from Florida to Arizona, I made it in four pieces, ends, side, and stretcher. Assembly uses ten 4-9nch screws with dowel nuts to hold it solidly together.