When I was making it I wasn't sure if people would go for it or think I was a freak, but it turned out to be great. The weight limit is 600 pounds if done properly, so you have about 500 people pounds after the mattress and wood weight. This is enough for almost any couple to safely sleep and with proper safety should never fail sans advanced warning.
This bed is also adjustable. I can make X's with the cable to raise it around 5.5 feet above the floor. Also, making the wire loops "longer" lowers the bed. Please buy plenty of cable so you too can adjust your bed to the right height. I am just short of 6 feet and I can crawl up just fine, but most need a stool or chair, keep this in mind along with the added risk of having a bed 4 feet off the ground.
There are a few requirements for your dwelling you need to make this happen. I would hate for you to start chopping up your place to find no trusses to hang from. Before you begin you should know you will probably only be able to do this is you live in a house (duplex, town home ect) and NOT an apartment. From my experience of building homes and living in apartments those of you will be out of luck :-(
I recently finished this instructable as it was only half completed for a long time; reason I believe for low rating (IMO)
If you like this please rate 5 stars*****
Step 1: First Step is Gathering Supplies
8" Wall or ceiling hooks (x 16)
3/32" Coated wire (x 60 Feet)
3/32" Wire Clamps (x 16)(-Come in 3 Packs)
Same Thread SAFETY NUTS (x 32 TO ENSURE THE CLAMPS NO NOT SLIP)
2" x 4" Board (x 4)(-84" Boards)
84" x 60" Plywood Sheet (x 1)
Drill of Choice
I wanted this project to be safe as well as fun. It puts me to sleep faster than Ambien and Scotch. It should be noted this bed moves with your natural body movement. Until I slept in this bed it wasn't something that was clear to me. When suspended you are able to moves forward backward and side to side without much resistance, and this is what can makes some folks feel motion sickness. To my understanding it is just a false sense of security many beds provide that this one does not. It moves exactly reflective of your own movement.
When I said this project was rated to 600 pounds that is the amount the weakest link can safely ensure. The weight rating on the Hooks is 75 lbs. per on a vertical load. (That drops to 35 for a horizontal load) This means that with 8 hooks the vertical safe load is 600 lbs. The cable is doubled over and rated at 320 pounds, so each loop is viable at 640 lbs. The clamps have a rating of 200 lbs. and since we are using 2 clamps per loop of cable this is overall a very safe setup.
Hook Load (8 X 75LBS = 600lbs)
Cable Load (640 X 8 = 5120 lbs)
Clamp Load (200 X 16 = 3200 lbs