Declension table of ?svāpana

Neuter	Singular	Dual	Plural
Nominative	svāpanam	svāpane	svāpanāni
Vocative	svāpana	svāpane	svāpanāni
Accusative	svāpanam	svāpane	svāpanāni
Instrumental	svāpanena	svāpanābhyām	svāpanaiḥ
Dative	svāpanāya	svāpanābhyām	svāpanebhyaḥ
Ablative	svāpanāt	svāpanābhyām	svāpanebhyaḥ
Genitive	svāpanasya	svāpanayoḥ	svāpanānām
Locative	svāpane	svāpanayoḥ	svāpaneṣu

Compound svāpana -

Adverb -svāpanam -svāpanāt