When I contracted in 2018, I paid $650-700/month for a pretty good "silver" insurance plan covering my wife (34 then) and I (39 then). Definitely varies by state and availability of insurers. But it was by choice... 1099 rate easily covered all taxes and insurance with room to spare and allowed be to set up a solo LLC and dump a buttload of pre-tax money into a 401(k)... About $53k in one year.
Taking time off was hard for me mentally with that high rate, knowing how much gross income I'd give up to take a week off for a trip.