The Relationship Between Sex and Sleep | Sleep Foundation#sleep Happy Valentines Day! Yes, in addition to other health benefits, there is a connection between better sleep and more intimacy in the bedroom. But, honestly, it’s such a tough topic to study that there’s no real research to back up one claim that intimacy in the bedroom can also help create better sleep. But, common sense would suggests that raising the level of feel-good hormones in the body like oxytocin and prolactin and reducing stress hormone levels, like cortisol, is likely to help us sleep better. For all doing their own research tonight – Enjoy!