| how many types of sleeping disorders | 1.2 | 0.9 | 79 | 36 | 58 |
| different types of sleeping disorders | 0.27 | 0.2 | 7726 | 37 | 34 |
| all types of sleep disorders | 1.09 | 0.5 | 1184 | 28 | 39 |
| how many sleep disorders exist | 1.58 | 0.4 | 8612 | 30 | 1 |
| types of sleep disorders list | 1.47 | 1 | 2235 | 29 | 17 |
| common types of sleep disorders | 1.65 | 0.2 | 4902 | 31 | 21 |
| list of all sleeping disorders | 1.85 | 0.7 | 4098 | 30 | 48 |
| list five types of sleep disorders | 1.73 | 0.4 | 522 | 34 | 4 |
| list 3 types of sleep disorders | 1.9 | 0.1 | 9306 | 31 | 53 |
| different kinds of sleep disorders | 1.36 | 0.9 | 5243 | 34 | 56 |
| sleep disorders different types | 1.67 | 0.8 | 5734 | 31 | 79 |
| how common are sleep disorders | 0.05 | 0.2 | 9966 | 30 | 82 |
| categories of sleep disorders | 1.59 | 0.2 | 9580 | 29 | 37 |
| what are the different sleep disorders | 0.55 | 0.4 | 3236 | 38 | 63 |
