You can set your spawn point inside dangerous blocks

Using a bed or respawn anchor, you can spawn inside or onto the following blocks:

• Cactus

• Campfire

• Fire

• Lava

• Magma Block

• Soul Campfire

• Soul Fire

• Sweet Berry Bush

• Water

• Wither Rose

Players can be trapped forever if they continuously spawn in a water/lava chamber completely surrounded in certain blocks.