Breaking your waters MIGHT speed things up but it would be thr WRONG thing to do if your baby is posterior.
I was also restricted to a bed, labour not progressing and had a bullying mw. Had the ARM (Id been in labour 48hrs by this point so was desperate) and it was the worst decision in my case.
Bsby was posterior (she did not check baby's position whixh she should have done I later learned) he was still trying to turn to find a way through the pelvis.
After the ARM the water cushion eas removed so he slammed down in to the pelvis but was less able to turn with each contraction.
The mw fucked off for four hours and I went through AGONY. babys head was crushing nerves so all contraction pain disappeared behind this much greater pain (I thought was normal) ctx were lasting ten minutes apiece and (as I know now) were worse then normal ctx pain. Worse than ttransition for sure.
After 3 hrs I called the mw and she checked dilation. Not one extra cm. Still 3.
Synto drip came out and new mw shift change. This one was brilliant. more supportive but i was still on my back as I had an epidural. Coukdnt walk as I'd boosted myself to max dose. But it only took partially. Did take the edge off the nerve pain.
Baby was born 24 hrs after the ARM (as per the rules) but by forceps. He was trying to be born sideways and pressure marks on his face ( besides the forceps marks) showed his cheek bone had been crushed against probably my pubic bone.
I regret that ARM because of that.
I read up about this afterwards and good practice is to not break waters if baby is posterior. Make sure they check for that. It can work beautifully if position is right.
And whatever happens...that beautuful baby will be with you soon. 