Reddit reviews Hafele America No Mortise Bed Rail Fittings, Set of 4

There are so many types, here are some:

http://www.amazon.com/No-Mortise-Bed-Rail-Fittings-Set/dp/B003F0DZZ4/ref=pd_sim_hi_1?ie=UTF8&refRID=1S7FT7E3DJJ5132V1ZKZ

http://www.amazon.com/Surface-Mount-Rail-Brackets-Complete/dp/B001DT3SLU/ref=pd_sim_hi_4?ie=UTF8&refRID=1S7FT7E3DJJ5132V1ZKZ

http://www.amazon.com/Locking-Safety-Rail-Brackets-Full/dp/B001DSZWN8/ref=pd_sim_hi_8?ie=UTF8&refRID=1S7FT7E3DJJ5132V1ZKZ

http://www.amazon.com/Galvanized-Steel-Bed-Rail-Fasteners/dp/B001DSZGCU/ref=pd_sim_hi_9?ie=UTF8&refRID=1S7FT7E3DJJ5132V1ZKZ

http://www.rockler.com/heavy-duty-wrought-steel-bed-rail-fasteners-4-pack-select-size

http://www.rockler.com/locking-safety-bed-rail-brackets

http://www.rockler.com/surface-mounted-keyhole-bed-rail-brackets

http://www.rockler.com/5-surface-mounted-bed-rail-brackets

http://www.rockler.com/surface-mount-bed-rail-brackets

Just browse the related items or use those keywords to run a Google search.

Also, I'm plugging /r/woodworking

How does it attach to the rails? I have a bed that uses these that squeaked pretty bad. I oiled them and that helped significantly.

Awesome! I would love to see some pics after you build it! I also recommend these for the frame, made it super easy and solid as a rock! https://www.amazon.com/gp/aw/d/B003F0DZZ4/ref=yo_ii_img?ie=UTF8&psc=1

No, I actually ended up using these brackets to attach the rails to the head and footboards. I didn't want them to be attached directly or permanently.

I found these brackets to use for the side rails. There's a little thinking involved to get them right, but seem easy enough.

For the center support I just found some 2x4 bracket things at the hardware store. I'll screw them into the head and foot boards, then the 2x4 slides right in, so it's easy to disassemble and move. Looks a little tacky but once the mattress is on nobody will see it!

My next hurdle is to get the lumber. Haven't sourced anything yet, going in to a local place in the next few days just to see what's available. Hopefully they'll have stuff in the dimensions I need; don't have a table saw. Otherwise I'll have to figure something out there.

There's no angled bracing, looks like it might be prone to racking (i.e., if you push hard enough at the top, the top will slide over but the bottom stays put and the whole thing accordions down). Hopefully the fasteners in those 1x6's are far enough apart to provide resistance to shear stresses. And disassembly for moving will be a hassle; repeated removal and re-driving of those screws will compromise their utility. I'd have used these so that the head and foot frames were separate units and the mattress frames slot into place.

Something like this sliding plate wall mount (but smaller) would work really well.

Then you could use command strips to attach the mounting bracket to the wall in both rooms and easily slide the station on in either of the two locations.

I can't find anything similar but smaller unfortunately.

Edit 1: This type of faster is called a 'keyhole hanger'. I haven't found quite the perfect thing, but I'll keep an eye out.

Edit 2: One of these or these might do the trick. You'd have to mount on the side of the base station, but it'd be pretty secure and easily swap-able!

Edit 3: Ahah! These seem about as close as it's going to get.