Dimensions:

Beautyrest® Level 2 Hybrid Medium Firm - Twin 74.5"L x 38"W x 12"H

Beautyrest® Level 2 Hybrid Medium Firm - Twin XL 79.5"L x 39"W x 12"H

Beautyrest® Level 2 Hybrid Medium Firm - Full 74.5"L x 53"W x 12"H

Beautyrest® Level 2 Hybrid Medium Firm - Queen 79.5"L x 60"W x 12"H

Beautyrest® Level 2 Hybrid Medium Firm - King 79.5"L x 76"W x 12"H

Beautyrest® Level 2 Hybrid Medium Firm - Cal King 83.5"L x72"W x 12"H