Place it at the end of a late-night scene, just after the bed question, then follow it with the Bruh Meme sound for the reaction, or use It Was At This Moment He Knew right before it to frame Edward's confession as the reveal.
Über diesen Sound
This six-second French-dubbed exchange has Bella asking Edward Cullen about a bed before he answers, in a calm low voice, that he does not sleep. It feels dryly funny and a little eerie, the contrast between an ordinary question and a vampire's flat confession giving it a deadpan charm. The line comes from Twilight.