Hi Adrian, thanks for your valuable feedback. I'm sorry to hear your 3rd person had trouble with the air mattress deflating. We were not aware of this issue. Fyi, it is always best to contact the host during your stay if you have any issues such as this so one can try and put things right. For example, in this case we could have sent someone over and provided you a futon mattress to replace the airbed. Also, we usually state in the message string that our house, when configured with only one bedroom, is only suitable for 1 adult couple, then the possibility of up to 2 children on the mattress. Although we did not use these exact words with you, we did reiterate before you booked that there was only one queen bed, plus an airbed, and you stated that you were accepting of this arrangement. For this reason, we do not believe anything about our listing is misleading at all. It does indeed sleep 4 people. My advice to you in future, is communicate properly with the host if you have any issues while you are staying, not afterwards when nothing can be done to make things better.