This is the place to post questions and discussions on usage and style. The members of the Wordwizard Clubhouse will also often be able to help you to formulate that difficult letter.
I've never seen those before but I thought I'd try Googling "inflatable lounger"...and there they were. Some brand names are Air Chair, Cloud Lounger and Pocket Couch.
trolley : Thanks a lot for the terms. They're extremely helpful.