Well...at first I made bed in nearby biomes, of course.

But then I found out that it is way easier to look for Swamp crypts and drive the ship directly to the crypt (10 meters from the entrance), then enter the crypt (safe) and from there eliminate the enemies outside, then build a bed.

But it is right, maybe I should create a first bed in the adjacent biome and then head for the Swamp crypt.