I count your eyelashes while you sleep...

Try and think, about the first time you lay next to that someone, let your fingers roam over them, memorizing them so that you can make it through the moments you have your eyes closed.  That honeymoon moment that is just perfection.
My sweetheart kisses me in his sleep, he makes adorable noises and he reaches for me when I roll away...  when he wakes up he rubs his eyes in such a sleepee way that makes me want to stay there in the morning light one minute longer. He smiles and whispers to me and letting go of sleep and the world of dream is all the easier.
It is that feeling you could live in, that overwhelming sense of adoration with the thunder in your heart when you realized that you were and may forever be linked to this person. You can live with that and that startles you too. Wonder at the realization for a little bit and then lay your head down. Time to go to sleep...