You say tomayto, I say tomahto. You say Crrribbean, I say Caribbeeean. You say roomy, I say...orgy. Here is a great big hammock. A Mega Hammock. The listing specifies that it comfortably fits 3 people, but I think it can easily and sexily fit up to 6.
Mega Hammocks by Hummingbird Hammocks come in a choice of blue, brown, orange, or yellow ripstop nylon with black Type 12 webbing. The designer, an FAA-certified parachute rigger who hand crafts all hammocks himself, notes that their webbing is visible only at the corners and, combined with bonded Nylon thread and TIIA sleeving, provides additional strength. Maybe enough for a 7th.