Ashtangasamgraha 9.26

9.26

grīṣme vāyucayādānaraukṣyarātryalpabhāvataḥ |

divāsvapno hito 'nyasmin kaphapittakaro hi saḥ ||

dadyāddrākṣārasaṃ pānaṃ śītaṃ doṣānulomanam ||

prasthaṃ bhūtagrahonmādakāsāpasmārasūdanam ||

In summer, because of the accumulation of vāta, absorption, dryness, and the shortness of nights, / daytime sleep is beneficial; in other seasons, indeed, it causes kapha and pitta. / One should give cold grape juice to drink, which normalizes the doṣas. / A prastha of this destroys spirit possession, insanity, cough, and epilepsy.