This new add-on will make it possible to dye you bed in different colors. See which colors you can dye your bed in below. Normal beds can’t be dyed. But you can spawn a shulker which will now look like a bed and then use any of the dyes in your inventory (e.g. cactus green or dandelion yellow) to dye it. Keep in mind that none of the “shulker beds” are functional. Meaning, you can’t sleep on them. This is purely just a concept.
Minecraft Pocket Edition: Dyeable Beds Add-On Showcase: