While I use headphones when listening to Paraliminals during the day, when I listen to something at night while I am in bed, I do not like using headphones as they detract from my comfort and make it harder to get a good night's sleep. So will I still get benefits from listening to the Sleep Learning Track through speakers?

Also, is it a good idea to have listened to the full Paraliminal at least once, before using the Sleep Learning Track for that Paraliminal?