Minecraft wiki entry for Survival_in_an_infinite_desert, associated text: As you can't set your spawn point, build a strong defensive base at or near your spawn point. If your main base is not at your spawn point, build a smaller survival shelter exactly centered on your spawn point, but with walls far enough away from the spawn point that you respawn inside the walls, not outside. Ideally, create a safe tunnel or enclosed passageway to your main base.