Table that fits between couch cushions

This table fits between 16 cm thick couch cushions. I designed it to fit the Joybird briar sofa. on this sofa it sits directly on a frame piece and is very stable. The indentation for a water glass is 8 cm in diameter and 3 mm deep. I print exclusively in PLA. 15% infill is feeling sturdy enough but your mileage may vary!