The following is based on my experience in a GE hammock as a side sleeper. The proper adjustment of the UQ when on your back will be too loose, especially at the foot end, when you turn on your side. When on my side I am in more of a fetal position and therefore there is basically no weight at the foot end where the adjustment cord is located. If you side sleep straight as a board, if that is even possible, this effect would be lessened I would imagine. You can adjust the UQ for side sleeping but it will be too tight at the cinches if you lay on your back. It is also very difficult to adjust the UQ without help, but can be done with trial and error.

I found no work around and never solved the issue with a GE. Having said that, I have found 2 solutions. The first is a bridge hammock. It doesn't care how you lay in it. The second is the Superior Gear insulated hammock. Since the insulation is sewn in it follows your body contact points better. Good luck.