I am sorry that your back problems prevented you from getting a good night's sleep. Out of the almost 60 reviews, you are the only pne who has complained about the bed, so I will put it down to personal preference.
With respect to your comment about your data, while you were in my house you would have had unfettered access to everything I own, plus bank statements, contracts, insurance documents etc. I do not think it unreasonable that I should request to see ID. Uploading a scanned document which can be easily forged to an online system where the parent company is based in the US is not much peace of mind, I am afraid. Again, out of almost 60 reviews, yours is the only complaint.
The 'large' window is a vent and the room would not have needed airing had there not been such a pungent doggy smell. When I offered you a special spray for the doggy smell, you refused. It would have been unfair for the guests checking in after you to have had to sleep in the room smelling as it did.