Garudapurana 2.18.10

2.18.10

śayyādānādbimānastho yāti svargeṣu mānavaḥ /
tadahni dīyate sarvaṃ dvādaśāhe viśeṣataḥ //

Through the gift of a bed, a person travels mounted on a celestial chariot into the heavens. / All this is given on that day, especially on the twelfth day.