As OP have said it really depends on the hospital and the care givers.

I have been fortunate enough to have given birth in a fantastic rural hospital that offer ALL types of things to ensure the mothers birth of her baby goes smoothly. Pain relief options can include the gas, sterile water injections, pethadine, TENS machines, Epidurals etc. they have showers and large baths in all the labour rooms, fit balls, matts, beds, monitoring machines, you can bring in electric oil burners, music, they can dim the lights anything really.

The ONLY thing they won't allow is a water birth. Once you start pushing you must get out from the bath and I think my shower was turned off at that point but I wasn't paying attention to that

I only had midwives and hubby in with me and a Dr came in to stitch me up post delivery,

Again not every place allows so much freedom, though so I count my blessings.

Nae x