Is the California queen size mattress bigger than a king size mattresee?

No, a California queen size mattress is not bigger than a king size mattress. A California queen measures 60 inches wide by 80 inches long, while a standard king size mattress is 76 inches wide by 80 inches long. The king size mattress is wider, providing more sleeping space for couples. However, if you're comparing a California king (which is different from a California queen) to a queen, the California king is larger.