Adam Clarke on Acts 5:6

The young men arose - Some of the stout young men belonging to the disciples then present, who were the fittest to undertake a work of this kind, which required considerable bodily exertion.

Buried him - This was on the same day in which he died. It was a clear case that he was dead, and dead by a judgment of God that would not be revoked. As therefore it was no case of suspended animation, there was no reason to delay the burial.