Blog // Recovery
What research says about acute sleep deprivation and physical performance
Roberto, Founder, REZA Health & Performance · 9 September 2026
Everyone has a bad night sometimes. But what does that do to your training the next day? A systematic and meta-analytic review (Craven et al., 2022) pooled the evidence on acute sleep deprivation — one night or a short period of insufficient sleep — and physical performance.
The key finding is that a night or short period of insufficient sleep is associated with a measurable decrease in physical performance. That group-level result does not predict exactly what one person will experience on a given day. The source also does not diagnose or treat sleep disorders.
The finding makes sleep relevant context when discussing physical performance, but it does not prescribe a specific training adjustment. This article does not diagnose or provide medical advice. Discuss persistent sleep problems with a qualified healthcare professional.
Sources in the evidence library
- What a night of little or no sleep does to your sports performanceCraven J e.a. · 2022 · Sports Medicine 52(11):2669-2690
Limitations
Group results do not predict exactly what one person experiences.
Persistent sleep problems should be discussed with a qualified professional. This article is general education and does not replace personal diagnosis or treatment. If you have symptoms, a condition or take medication, consult your GP or treating professional first.