Effect snapshot
| Intervention | Extend sleep toward 8–9 hours/night for 2+ weeks |
| Outcome | Reaction time and sprint drill scores |
| Effect | 8–15 percent relative increase |
| Confidence | study |
| Context | Collegiate basketball and soccer sleep extension studies |
Sources
What changes
Sleep extension interventions often report 8–15% relative improvements in reaction and sprint metrics in student-athlete studies.
When this tends to work
- Conditions similar to: Collegiate basketball and soccer sleep extension studies
- You can measure
Reaction time and sprint drill scoresreliably - The intervention is implemented consistently, not half-measured
When to be careful
- Your audience or product differs materially from the cited context
- Compliance costs or second-order effects outweigh the lift
- Evidence label is study—treat wide ranges as planning bands, not promises
Practical takeaway
Use the cited range for prioritization and test design. Verify against your own data before scaling.