LiftsmithRecovery
Sleep and muscle growth: how much sleep do lifters need?
· 2 min read
Training breaks muscle down and asks it to grow back stronger. Most of that rebuilding happens while you rest, and sleep is the biggest part of rest. Lifters who sleep well recover faster, feel better in the gym and tend to keep more muscle when dieting.
See which muscles are ready. Free to start, no account needed.
See your recovery mapHow much sleep
Seven to nine hours a night suits most adults. If you train hard, aim for the top of that range. One short night won't ruin anything; weeks of six hours or less will show up as stalled lifts and lingering soreness.
Training after a bad night
- Keep the session, lower the effort. Do the plan, but stop each set a rep or two further from failure.
- Skip records. A short night isn't the day to test a max.
- Shorten it if you need to. Main lifts first, accessories if you feel up to it.
Sleeping better
- Go to bed and get up at about the same time every day.
- Keep the bedroom dark, cool and quiet.
- Stop caffeine about eight hours before bed.
- Train earlier in the evening if late sessions keep you awake.
In Liftsmith
If your phone or watch tracks sleep through Health Connect or Apple Health, a short night counts toward today's readiness, along with heart rate variability and resting heart rate, and the day's call can ease the workout. See HRV and training readiness.
Questions
- Does lack of sleep stop muscle growth?
- It doesn't stop it, but regular short sleep slows recovery and makes it harder to train hard and keep muscle on a diet.
- Should I work out if I slept badly?
- Usually yes, a little easier than planned. Skip it if you feel unwell.
See which muscles are ready
Liftsmith's 3D recovery map shows how recovered each muscle is from what you've lifted, and plans around the ones that need rest.
- ✓ Free to start, no account needed
- ✓ Plans every set, rep and weight for you
- ✓ Works offline, on Android, iPhone and the web
- ✓ No ads, ever
Keep reading
- Deload week: what it is, when to take one and howRecoveryA deload is a planned lighter week that lets fatigue drop so strength can show. When to deload, how to cut volume and load, and signs you need one early.
- Dynamic vs static stretching: which to do and whenRecoveryThe difference between dynamic and static stretching, which one belongs before lifting, which after, and whether static stretching makes you weaker.
- Health Connect and Apple Health for lifters: what to syncRecoveryWhat a lifting app should read from and write to Health Connect and Apple Health: weight, body fat, sleep, HRV, heart rate and workouts.