Once a day is usually enough. No one enjoys being nagged so overloading the senses is just nagging yourself.
Listen to the sleep learning when convenient at doing something at the computer if you like. You can use the sleep learning track during sleep if you like. But I would only use it every other day. Since since during sleep you have other things to work on as well.
An intention for listening does make it more effective and it it does help to trust doesn't it?
Alex
