Insulated walls + do not disturb signs are the only things I'd consider necessities, everything else just preference or willingness to splurge. Also can we address how *easy* it is to lose DND status when someone just comes along and flicks it off the door? I mean we all remember being 14. That shit happened to me at a relative's wedding in ATL last year and while I wasn't ctb I could have easily been disturbed and only by sheer luck I wasn't. Your airtight ctb plans inadvertently foiled by some juvenile delinquent, lmao. This is why I'm looking heavily to airbnb, beside the moral issue of discovery by staff.