Flight Crew Instrument; Flight Crew Multiengine; Flight Crew Air Transport Pilot (ATP)
Flight Crew Last 90 Days 64.3; Flight Crew Total 11234; Flight Crew Type 3267
Physiological - Other
No Specific Anomaly Occurred All Types
General Work Refused
Company Policy; Human Factors; Environment - Non Weather Related
After reporting at XA:15 for a XB:45 pushback to ZZZZ; we were delayed for a maintenance issue.  Our CCO time was XD:28; we waived and agreed to extend for 2 hours until XF:28.  The time ran out and we were delayed because of legality issues.  It took us 1 hour to get to the hotel; because of late night and COVID-19 procedures.  I entered my room at XG:30.  I tried to find some food because the intention was to complete the 15 hour flight to ZZZZ.  I found no food so elected to try to rest.  I rolled around trying to decompress and unwind from the on again off again rolling delay of the maintenance issue.  I finally fell asleep around XJ:00.  At XK:00; the hotel started to come alive.  There were numerous door openings and closings.  They were obviously crew members leaving for work.  Not 45 minutes after numerous crew members departed for work housekeeping arrived to clean and disinfect the rooms.  It seemed like due to COVID-19 the process took longer and was much louder than it should have been.  By that time it was XN:00 and I had slept for maybe 60 minutes.  I decided I was not fit to fly due to operational caused fatigue and informed the crew desk at XO:00.
Air carrier First Officer reported a maintenance delay combined with COVID-19 procedures resulted in being unfit to fly due to fatigue.