Novelty dog beds are often machine-washable, but the exact settings depend on the manufacturers’ directions. You may need to remove any foam inserts that are in the bottom or sides of the bed. Wash dog beds separately without any other clothing or fabric, especially if they are filthy or have bright colors that may bleed.
Drying methods vary depending on the type of fabric, but the rugged materials typically used in dog beds are often machine-dryable as well. You may need to tumble-dry the bed on low, mainly if it contains foam or stuffing that cannot be removed.
Some large dog beds recommend spot-cleaning with or without soap. Look for a pet-friendly spray designed to soak stains on furniture for easier removal.