| mattress → HasPrerequisite → foundation | 0.50 | |
| mattress → HasPrerequisite → a mattress protector | 0.45 | |
| mattress → HasPrerequisite → a box spring | 0.44 | |
| mattress → HasPrerequisite → a lot of folding | 0.34 | |
| mattress → HasPrerequisite → air flow | 0.31 | |
| mattress → HasPrerequisite → air circulation | 0.30 | |
| mattress → HasPrerequisite → replacement | 0.29 |