It sure will fit your BMBH and unless you have a Hennessy Hammock with a bottom entry slit you really don't need to undo the sew job on the slit. It will actually work better with it sewn up so no chance of drafts getting in. Temperature Rating: 25°-30°.
Length: 78 inches
Width: 48 inches
Loft: 2.5 Inches
Material: 1.1 oz., 30 denier, ripstop nylon
Insulation: 800 fill power goose down
Weight: 21 ounces