What is the first LTR you usually give your sims?

I like to get Meditative Trance Sleep. I like the way it shortens the sleep time required by just enough to allow my sim much more freedom to enjoy the evening and still wake up in time to get ready for the day. Even more helpful when the family includes a baby or toddler. Because the length of time it takes to get a good night's sleep is reduced, I have a wider selection of beds to pick from without worrying about the energy level.