Can anyone please tell me if the bed in the extra bedroom is comfortable? Does it have the springs and bars on typical pullouts or is it a full mattress on a platform? Looking at booking this and my 25 year old son would stay in that room. I want him to be comfortable and I'm concerned the bed may not work for him. He's not a big guy, but when you're used to a nice mattress in your own home then sleeping on bars and springs is a no go. Thanks!