Astanga Hrudaya
अरूक्षमनभिष्यन्दि त्वासीनप्रचलायितम्। ग्रीष्मे वायुचयादानरौक्ष्यरात्र्यल्पभावतः॥५६॥
Taking a nap sitting comfortably (during day) is neither dry nor unctuous Sleeping during day time is beneficial during summer, because in that season,
english translation
arUkSamanabhiSyandi tvAsInapracalAyitam। grISme vAyucayAdAnaraukSyarAtryalpabhAvataH॥56॥
hk transliteration by Sanscript