Not sure if you mean the Murphy bed or the upper berth that pulls down from the ceiling, but I had to once sleep in the Murphy bed, and I found it very uncomfortable (even more so compared with the wonderful Sealy Queen) even after asking our room steward for some sort of foam topper. I know there's a 150lb weight limit in upper bunk. Haven't slept in that nor the day ("sofa") bed, but I imagine they're all similar. I'm 5' 10" and I fit in them all, I just found the mattress very uncomfortable.