“And among His signs is your sleep him at night and during the day, and your seeking of the bounty-Lo! In this is truly there are signs for a people who listen” (Qur’an Ar-Rum: 23)
The Arabic dictionary meaning of Qailulah – قَيْلُولَة is a nap ; siesta (نَوْمَةُ الظّهِيرَة) which is called Qailulah, this is a Sunnah of Prophet pbuh. If we do not know this, then we are merely napping due to habit and not be rewarded.
“Qailulah was sleeping in the middle of the afternoon when zawal or near the time of zawal before or since.” One can do Qailulah (siesta) before or after Zuhr. There is no time fixed for it. It’s time may differ as per the situation. Qailulah means to take a rest at the time of afternoon though one sleeps or not.
Napping/siesta during the day is a phenomenon, which is widely practised in the world. However, the timing, frequency, and duration may vary. The basis of napping is also diverse, but it is mainly done for improvement in alertness and general well-being. Neuroscience reveals that midday napping improves memory, enhances alertness, boosts wakefulness and performance, and recovers certain qualities of lost night sleep. Interestingly, Islam, the religion of the Muslims, advocates midday napping primarily because it was a practice preferred by Prophet Muhammad pbuh.
The objectives of this review were to investigate and compare identical key points on focused topic from both neuroscientific and Islamic perspectives and make recommendations for future researches. It’s the importance of science. Previous research has shown that short daytime naps improve vigilance and cognitive functions, and are beneficial for memory consolidation.
Here’s a nap for health benefits:
1. Improve memory A 2008 study found that during a 45-minute nap can help improve memory. This increase occurred in a phase of slow-wave sleep or short-wave sleep, as usually happens when a nap. Increased brain activity during sleep is also believed to be beneficial to learn a foreign language. Words or new terms will be easier to remember if often played while sleeping.
2. Improving productivity Nap can protect the brain from the information processing that occurs in excess and help consolidate the newly learned information. This in turn will increase concentration and productivity in the workplace. In fact, previous studies find a nap can lower blood pressure.
3. Treating insomnia Research has found that people who nap for 15 minutes to feel more alert and less sleepy, even when the lack of sleep the previous night. The effect can indeed vary in each individual, but a study in 2011 confirms a nap makes insomniacs become more fit for the total downtime is becoming longer.
4. Reduce stress Want to cut as much as half the stress hormone cortisol? Research shows that stress hormones dramatically decreased after a nap, especially if overnight sleep less soundly.
A German study found that when a group of pilots slept less than 7 hours overnight before serving, cortisol levels increased significantly and last for 2 days. But when successfully nap for a while, cortisol levels decreased by half.
5. Preventing heart disease Short nap for 20-40 minutes can reduce the risk of cardiovascular diseases such as heart disease and stroke. This conclusion is based on research conducted by researchers Greece.
Researchers found that people who are at least 30-minute nap for 3 times a week can reduce the risk of cardiovascular disease by 37 percent.
According to this study, healthy nap should be between 1-3 o’clock noon for no more than 45 minutes. If excess, it causes woke up with ‘heavy head’.