What's Qaylula!

 Qaylula is a Sunnah of Nabi SAW. 

It means, taking rest in the afternoon, after lunch. 

The duration of rest/nap can vary from 10 to 60 minutes .

Reference:

Surah Al Nur, ayat 58.

Surah Al Furqhan,ayat 24. 

As per hadith, take rest for sometime, after lunch, even if you have had 2 mouthful of food. (Shayatin do not rest for Qaylula. 

Benefit. 

It refreshes you and gives you energy for the tasks ahead!