generally you are so tire after touring WDW all day - you will just collapse.
just make sure that the beds work for you before you leave to go to the parks.
I have had trouble with the BCV beds - taking them out and putting them back.
You don't want to have to wait for housekeeping to come help when all you want is sleep.
We stayed at the BCV in October with another couple who slept on the pullout couch, and then in January with my friend who is single and slept on the pullout couch. All pullout sleepers are over the age of 40, and all said that it is comfortable.