Living Proof Perfect Hair Day Night Cap Overnight Perfector ($29) works while I'm fast asleep so what could be easier than that?! I just put it on before bed, pull back my hair, and the amino acids, antioxidants, and time-release conditioners hydrate and revitalize, with no need to rinse it out in the morning either. This product also helps seal cuticles, protects colour, and makes my hair less frizzy . . . plus, it doesn't get all over my sheets and pillowcase either (with results lasting up several days after application).