LDwife: It depends upon what you mean by "caress", but I would have a hard time with this if my wife said you can caress me, but I just want to be caressed to sleep. If caress means that I am just tickling her back, or running my fingers through her hair, then okay. But if it is sexual caressing, e.g. touching breasts, inner thighs and/or butt, then forget it.... I can't get all jazzed up and then just turn it off if I hear snoring. I guess I'm assuming that you meant the first type of caressing.
