हलीमकः शिरःशूलं स्तैमित्यं गुरुगात्रता| अङ्गमर्दोऽग्निनाशश्च प्रलेपो हृदयस्य च ||४६||
If one violated the given advice of sleeping during the day, he would subject himself to halimaka (advance stage of jaundice), headache, cold, heaviness of body parts, malaise, loss of digestive power, hridyopalepa (a feeling as if phlegm adhered to the heart),
impairment of memory and intelligence, obstruction of the body channels, fever, incapability of sensory and motor systems and enhancement of the toxic effects of poisons.
[Qualities of day and night sleep] Insomnia or staying up late at night causes roughness in the body and sleeping during the day causes snigdhata (unctuousness). However, napping in sitting posture does not cause either roughness nor unctuousness.