This is simple adapter (based on MeneerHout’s Air Pump Nozzles design) which fits perfectly on the Sleeping mat’s air flow control valve. Once the mat has inflated itself close the valve and use this adapter to add just enough air into the Outwell Dreamcatcher Double 7.5 cm Sleeping Mat to make it really firm.
Use external supports. Printed in PLA.
The author remixed this model.