Declension table of ?āyāsana

Neuter	Singular	Dual	Plural
Nominative	āyāsanam	āyāsane	āyāsanāni
Vocative	āyāsana	āyāsane	āyāsanāni
Accusative	āyāsanam	āyāsane	āyāsanāni
Instrumental	āyāsanena	āyāsanābhyām	āyāsanaiḥ
Dative	āyāsanāya	āyāsanābhyām	āyāsanebhyaḥ
Ablative	āyāsanāt	āyāsanābhyām	āyāsanebhyaḥ
Genitive	āyāsanasya	āyāsanayoḥ	āyāsanānām
Locative	āyāsane	āyāsanayoḥ	āyāsaneṣu

Compound āyāsana -

Adverb -āyāsanam -āyāsanāt