The purple-and-black winter bridge hammock I took to Mt Rogers is 48" width, 32" waist, 36" spreader, and 27" spreader. It is very stable. Very bulky winter gear does tend to spill out in the middle, but you are talking about a summer hammock.
Have you read the thread on TeeDee's Minimal Bridge hammocks?
I love the unimproved works of God. - Horace Kephart