| for pretty much all sleep positions | 137 | other |
| for the environment | 74 | purpose |
| for people | 27 | transitive-object |
| mattress → be → great | 500 |
| mattress → be → excellent | 155 |
| mattress → be → wonderful | 34 |
| mattress → be → fantastic | 28 |
| mattress → be → superb | 9 |
| mattress → be → fabulous | 8 |
| mattress → be → terrific | 3 |
| negative | neutral | positive |
| 0.063 | 0.174 | 0.763 |
| Raw frequency | 737 |
| Normalized frequency | 0.779 |
| Modifier score | 0.820 |
| Perplexity | 152.106 |