Review your needs
Only holds one pint.  Add to much and fluids will overflow threw vent tub.  When you gotta go it is hard to know what volume is needed.  Most of the time a person is probably preparing for events throughout the night which which will most likely be more than one pint.  I guess you need to empty each time it is used.  In that case I would be able to go to the bathroom once I was able to  get to the bathroom. R&D, make it bigger, redesign the overflow to flow into a emergency container.  Design it to be used while laying on you side and liquid flow into the container.
Rating: 1 stars