A split queen mattress consists of two separate mattresses, each typically measuring 30 inches wide by 80 inches long, together forming a standard queen size of 60 inches wide by 80 inches long. This setup allows each side to be adjusted independently, making it ideal for couples who use adjustable bases or have different comfort preferences. Though less common than split king or split Cal king options, a split queen offers personalized support and reduced motion transfer while maintaining a more compact footprint suitable for smaller bedrooms.