Yes, cake any time of day!
My sleep tees are: Frankie Say Relax, Le Weekend and one in Italian that has something to do with owls and flirting.
I agree with Firecracker -- the slogan should be something that doesn't seem weird to me. I broke down and bought something that Sweaty Betty calls an over-tee (a light second layer for exercise)because the shape is fantastic. I wear it .... but I will be slightly embarrassed if anyone every calls me on the "It's Cool to Sweat" slogan!