"In your face space coyote"-HJS
Beast, I'm a big boy too. My first attempts to get in and out of my hammock, were to say the least, humorous. I had the side-swallowing syndrome you spoke of as well. First, for getting in and out, try different heights at which you hang, I found a big difference in just a few inches higher or lower, your preference may vary. Just play around with it till you find what you are comfortable with. And for the swallowed up feeling, I found laying on the diagonal was the best way. I basically put my right ear against the right edge/seam of the hammock, feet poking towards the left seam. I'm not sure why the hammock collapses in so much for heavier people, physics people can chime in here, but I don't notice it when my kids lay in the hammock. Lets call it the big mans curse.
Ambulo tua ambulo.