You need to look at the OL website - I think you just need to put the primary guest’s name when you schedule the locker for delivery, it doesn’t have to be your name. It has to be the name the hotel/resort has on the reservation, so they can match it to the room number.
We have a souvenir type throw blanket in our OL that I use for sitting on the couch. The extra bed blankets are in zip-tied zipper bags along with sheets for the sofa bed, and I don’t want to open them. OTOH, if we wanted extra bed blankets we’d call Housekeeping.