Sleep Calculator: Make Best Feel in Following Day

Do you find it hard knowing the number of hours you need to sleep? Worry no more. Here's how you can calculate the number of hours you and all your friends and family need to get good quality sleep every night.

How much sleep you get every night plays a critical role in decision making, your stress response, how you execute your daily tasks, and, ultimately, your overall emotional wellbeing. The number of hours you sleep at night could be what's holding you from achieving success.

You may have been reading about getting enough hours of quality sleep every night but lacked the information on the right number of hours. Lucky for you, we know of a way to do just that—the sleep calculator.

sleep calculator features cycles

The asleep calculator can be used to estimate the amount of sleep you need each night to get enough rest and feel your best the following day. The sleep calculator adjusts for age, the number of minutes you take to fall asleep, and the REM and non-REM sleep cycles.

Why is Sleeping Fewer Hours Bad for You?

Your need for sleep will change as you grow older. However, if you keep getting less sleep, you might find that you've created a personality where you frequently get angry over minor things. You may also start experiencing depressive mood swings, feel a lack of energy, and a general sense of feeling low.

Few hours sleep

If you want to be successful in what you do, then you need to change all this. It would be best if you gave yourself enough time to rest and re-energize every night. Getting enough hours of sleep helps keep you more focused and in better moods. It helps you wake up more energized, less stressed, and with better decision-making skills and many more benefits.

How Does Your Age Affect the Number of Hours You Sleep?

Different ages sleep patters

The sleep calculator shows you when to wake up or when you should sleep. It can be adjusted to fit an individual's age since the older you grow, the less sleep you need to function optimally. Here is the minimal number of hours of sleep you need at different stages of your life;

  • Newborns- 14-17 hours.
  • Infants- 14-17 hours.
  • Toddlers- 11-14 hours.
  • Pre-schoolers- 10-13 hours.
  • School going children- 10-13 hours.
  • Teenagers- 8-10 hours.
  • Young adults- 7-9 hours.
  • Adults- 7-9 hours.
  • Older adults- 7-8 hours.

Sleep Cycles and the Number of Hours You Sleep

As you got to bed, your mind goes through five to six sleep cycles. While the first sleep cycle lasts approximately 10 minutes, subsequent sleep cycles take longer to complete, with the final one lasting up to an hour-long. Your sleep calculator should be able to adjust to these stages of sleep.

Sleep Cycles with stages of sleep

If the sleep calculator is not well adjusted, your alarm may go off during your REM sleep cycle. The rem sleep cycle is critical because it's at this stage that the brain converts experiences into memories. It's also the stage that enhances your critical thinking and problem-solving skills.

Therefore, you mustn't be woken up during this stage since you may have problems with your memory or have difficulty doing simple actions. It could also lower productivity in the first part of your day.

Here are Some of the Common Questions That Have Been Asked About Sleep Calculators

What Time Should You Wake Up or Go to Bed?

circadian rhythm with slep stages

The time your body is naturally ready to go to sleep is affected by your circadian rhythm. Some people sleep and wake up early while others sleep late and wake up late. However, you can train yourself to wake up at a particular time, and your circadian rhythm will have to keep up.

Can Getting One Less Hour of Sleep at Night Affect Me in the Morning?

Morning Fatigue

Yes. Losing one hour of sleep at night may not show quite visibly; however, it may affect your ability to think, solve problems, and slow your response time. It may also be bad for your heart, lungs, and your energy.

Do the Number of Hours You Need for Sleep Change With Age?

Sleep hours With Age

Yes. The number of hours you need to sleep changes with age. As seen above, when you grow older, the number of hours you need to sleep reduces significantly, and you're able to function optimally after seven to eight hours of sleep.

Can You Make Up for Lost Sleep During the Week if You Get More Sleep in the Weekend?

Making Up for Lost Sleep

Yes. Sleeping more at the weekend can help make up for lost sleep. However, it won’t replace the sleep lost throughout the entire week and should not be wholly relied on. It would be best if you made your routine in such a way that you get proper amounts of sleep each night.

Why is it That You’re Still Tired After 8 Hours of Sleep?

If you find yourself tired after getting the full number of sleep hours, you should concentrate more on improving sleep quality. Getting more hours of sleep than what is recommended will also not make you less tired during the day. You should follow sleep hygiene guidelines to get the best quality of sleep.

Tired After 8 Hours of Sleep

Signs that show that you’re not getting enough sleep

  • Relying on an alarm clock
  • Having a hard time getting out of bed in the morning
  • Feeling lazy in the afternoons.
  • Feeling drowsy during the day.
  • Falling asleep within five minutes of going to bed


The asleep calculator is one sure way of knowing the number of hours you need to sleep. If you calculate and get the number of hours you need to rest and keep good sleep hygiene, you'll wake up every day feeling energized both physically and mentally.

Sleeping well, getting the right amount of sleep, and waking up on time every morning is critical for your personal and professional success. Sleeping well is a habit that should be nurtured through good sleep hygiene, getting the right amount of sleeping hours. Sleep better and find success in your sleep.

Click here to calculate your sleep time.

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