I doubt there's anything more profound than a man in love watching his lover sleep. Severus looks younger, at peace (probably due to Harry's presence), & very loved. I don't blame Harry at all for marveling at his good fortune! Heck, I'd play with Severus' hair, & stare at him too, if I got the chance. I love it when you draw private, romantic moments when all is right in the Snarry world! ❤