Sleep and athletic performance: measurement, hygiene and managing travel

Sleep and athletic performance The relationship is one of the most widely agreed-upon topics in training science. Adequate sleep supports adaptation to strength and endurance training, affects reaction time and decision quality, and changes the perception of muscle soreness and general fatigue. Yet in practice, sleep is the part of the training program that is easiest to sacrifice: early sessions, late-ending matches, travel, and screen habits accumulate into sleep debt.

At O’Athletic Sky in Skyland Sarıyer, we also discuss sleep habits as part of athlete assessment. Because no matter how well the training plan is built, if there is a serious gap on the recovery side, the expected progress will not come. Below, we offer a practical framework under the headings of measurement, hygiene, and travel management.

How much should an athlete sleep?

The general recommendation for adults is in the 7-9 hour range. In athletes who train regularly and intensely, the need is reported to reach the upper end of this range, and in some cases to exceed 9 hours. Rather than looking for a single number here, it is more meaningful for a person to observe their own need: how many hours do they sleep when they wake without an alarm, and do they feel a marked need to nap during the day?

Beyond total duration, regularity also matters. Going to bed and getting up at a different time every day can negatively affect sleep quality and daytime performance even if total duration is sufficient. A pattern of sleeping little on weekdays and a lot on weekends is also not ideal, though it is not entirely worthless for paying off accumulated sleep debt.

Measurement: how accurately can you track?

There are several levels for tracking sleep, and each has strengths and weaknesses.

• Sleep diary: bedtime, wake time, nighttime awakenings, and a morning restedness score. The simplest but surprisingly useful method.
• Wearable devices: a good indicator of total duration and regularity; their accuracy in distinguishing sleep stages is limited.
• Questionnaires: standard tools that assess sleep quality and daytime sleepiness.
• Clinical assessment: necessary if snoring, breathing pauses, or serious insomnia is suspected.

The practical recommendation is not to treat device data as absolutely accurate and to focus mainly on total duration and regularity. Over-focusing on details such as deep sleep percentage often creates unnecessary anxiety and, ironically, disrupts sleep. If there is snoring, excessive daytime sleepiness, or persistent insomnia, it is appropriate to consult a health professional.

Sleep hygiene: the basic steps that work

Regularity and light

Going to bed and getting up at a similar time every day is the single most powerful variable. Getting out into natural light in the early morning helps stabilize the biological rhythm. In the evening, reducing ambient lighting and limiting bright screen use is recommended.

Environment

A cool, dark, and quiet room supports sleep quality. Blackout curtains, earplugs, and lowering the room temperature somewhat are low-cost but effective adjustments.

Evening routine and training timing

Intense evening training can delay falling asleep because it raises body temperature and arousal level. A calm transition period after training, a warm shower, light stretching, and slow breathing work make this transition easier. Heavy meals late at night and high fluid intake can also interrupt sleep.

Caffeine and alcohol

Although the effect of caffeine varies from person to person, it stays in the body for hours; limiting intake in the afternoon and evening is a common recommendation. Although alcohol seems to make falling asleep easier, it markedly disrupts the second half of sleep and is unfavorable for recovery.

How to use naps

When nighttime sleep falls short, a daytime nap is a useful tool. Short naps (20-30 minutes) keep post-waking grogginess to a minimum and have a quick effect on attention. Longer naps (60-90 minutes) can provide more recovery but lengthen the transition period after waking; for this reason they are not preferred right before a match or training. Napping in the early afternoon reduces the likelihood of disrupting nighttime sleep.

Managing travel and time zones

Away games and tournament travel are the situations that challenge an athlete's sleep the most. A few practical strategies make the process easier.

• Shifting in advance: shifting bedtime and wake time by 30-60 minutes toward the target time zone for a few days before travel.
• Switching to local time on arrival: adapting sleep and meal patterns to the destination time right away on the plane.
• Light management: getting morning light at the destination and avoiding bright light in the evening.
• Consistency on short trips: on trips of a day or two, not changing your rhythm is sometimes better.
• Bringing the sleep environment along: small but familiar items such as an eye mask, earplugs, and a favorite pillow.
• Hydration: getting enough fluids during the flight and keeping caffeine consumption under control.

When it comes to sleep-regulating supplements or medication, the decision must be made together with a health professional; for athletes, a check against doping lists is also required.

Paying off sleep debt

Sleep debt accumulated after a busy match schedule or travel can be partly made up with extended sleep over several days. This is also called the “sleep bank” approach: deliberately increasing sleep duration before entering a busy period can soften the effect of the deficit that will build up during it. This strategy can be considered in season planning ahead of important match weeks.

When sleep is planned with the same seriousness as training, it becomes the lowest-cost supporter of performance. Small changes built on regularity, environment, and travel management usually make a big difference. At O’Athletic Sky in Sarıyer, Istanbul, we track athletes' sleep and recovery data together with training load and adjust the weekly plan accordingly.