| very | 34 | degree |
| for stomach sleepers | 32 | transitive-object |
| for our body | 9 | purpose |
| mattress → be → important | 84 |
| mattress → be → crucial | 45 |
| mattress → be → essential | 25 |
| mattress → be → vital | 11 |
| mattress → be → important thing | 7 |
| mattress → be → critical | 3 |
| negative | neutral | positive |
| 0.100 | 0.420 | 0.480 |
| Raw frequency | 175 |
| Normalized frequency | 0.575 |
| Modifier score | 0.950 |
| Perplexity | 126.500 |