I had that problem for a while too. I hung the overnight bag in a small plastic trash can and sat the trash can on a step stool. That gave the additional length for "turn and toss" overnight. As long as the bag/trash can are lower than the bed, gravity will do its thing. I strongly recommend the trash can even for quiet sleepers. If the bag leaks for whatever reason from manufacturing defect to us not closing the stopper correctly after emptying, the mess of a leak will be contained in the trash can.
As far as bag, I thought the Medline to be of lesser quality than Bard Urinary Drainage Bag 154002. Remember to get the correct adapter.