Our spare bedroom is long and narrow, and with a queensize bed there's still plenty of floorspace, but it's not actually usable for anything. We wanted to make the room multi-functional, so the solution was to put in a murphy bed.
I was inspired by these two hacks.
Murphy Bed with Pax Wardrobe Cabinets
Murphy Bed with IKEA Cabinets
But tweaked things a bit...
The two posts that inspired me both had some negative comments about the murphy bed mechanisms that they used.
After digging around online I decided to use the kit from Next Bed, which I thought was fantastic. It's a slat-bed so it's comfy, it came in two reasonably manageable boxes (30lbs and 60lbs), and they've got some great videos online so assembly was easy.
Total cost of materials was $1,650.
(we waited until a Ikea bedroom event was on, bought the Pax items for $1,010, got back a $150 gift card, and used that to buy the lighting).
We also paid for delivery which I do not regret, since the pax boxes are huge and unwieldly.
I made an instructable if anyone is interested in more detail:
Ikea Hack - Murphy Bed with Sliding Doors