Pullman and sofa beds comfortable

[ALW2]

Are the pullman and/or sofa beds comfortable? Wondering if the mattress is the same thickness as regular beds on the Oasis.

[DEIx15x8]

Hope someone responds. On the Voyager my sister and I were fine sharing the sofa bed. When we went on the Liberty (same exact room) the bed was too small. I had grown but I was still smaller than my sister had been on the voyager and she had not grown. For Oasis my sister is not going but we got a room with both a sofa and pullman bed in case one is not adequate. Hopefully someone can provide some insight into which one is better for a 20 year old to sleep on or if both are fine on Oasis.