| for side sleepers | 6 | purpose |
| to hold adjustments | 2 | purpose |
| mattress → be → necessary | 10 |
| mattress → be → required | 6 |
| mattress → be → must | 5 |
| negative | neutral | positive |
| 0.131 | 0.649 | 0.220 |
| Raw frequency | 21 |
| Normalized frequency | 0.275 |
| Modifier score | 0.400 |
| Perplexity | 433.083 |