i was looking at your siggie to see the year/dates you stayed at hrh but didn't see it.
the hrh was refurbished during last year and this year. all rooms have been redone with new mattresses and furniture.
the sofa bed in my room was not an issue. i was there last month.
or, maybe i was just lucky with my room?
i do have to say, once you are used to sleeping in a regular bed, no sofa bed will be as comfortable as what you are used to.
i have slept on some pull out sofa beds and have had a great nights sleep.
if the sleepers have a firm and thick mattress on them, i can sleep fine on them. if they are quite worn and you can feel the braces in certain parts on them, no way will i get the type of rest i can on a bed.