[There is no snapping of fingers for this. Just a light touch to Aziraphale's lapel, and then his clothes become the pyjamas Crowley conjured, while his normal attire appears on the seat of the wingbacked chair by the window, all neatly folded, not so much as a stitch out of place.]

How's that? Much better than sleeping in your regular clothes, I guarantee. I think I've still got indents in unspeakable places from the last time I slept in my jeans.