Advice for hitting SP more consistently?

I have woken up in SP numerous times throughout the years (not much lately), but I’ve only voluntarily gotten into SP a couple of times.

Lately, I’ve been trying to do the wake back to bed technique. I try to transition to my back or side about a minute after waking because I don’t have issues staying conscious and don’t want to wake up my body too much.

I find my body gets mildly heavier with some light tingling or numbness after lying still for 30mins-1hr. It’s not true, full sleep paralysis though. No hypnagogic imagery, intense vibrations, weighted blanket feeling, or auditory hallucinations.

Does anyone have any advice on what to focus on? How do I go deeper?

What do you think about while trying to induce SP?

I sometimes wonder if I should try to take deep, controlled breaths as one would with breathing meditation or if I should try take shallow, passive breaths that mimic breathing while asleep.

I sometimes try to imagine my body falling deeper into the bed, which seems to deepen the sensation slightly.