I (31M) in an online non exclusive dynamic with my sub (29f)

It’s been 3 months of her being denied for the first time, she’s absolutely loving the experience so far. I try to always keep the experience interesting and exciting by coming up with new ideas and tasks and so on.

She edges 30-50 times a day on average and I usually ask her to sleep with a pillow between her legs.

I’m just thinking if there’s a specific sleeping position that can make her a but more frustrated during the night and when she wakes up.

I.e: on her back with a pillow between her legs, on her belly, on her side without a pillow.. I wouldn’t know what works effectively in this case.

Appreciate your help.