Tropica Bungalow hotel is just south of Bangla Road. (As you walk south from the beach end of Bangla, you pass a seafood restaurant, then the Tropica restaurant, then the driveway to the hotel itself, which is set back from the road.) There are many isolated bungalows and one large building with 13 rooms on each of 2 floors. I had a single in the large building (I think the bungalows are for more people) for $19US per night, including a large breakfast buffet.
The hotel is girl friendly. The rules in the room just tell you to have her leave ID at the desk. They even gave me 2 breakfast vouchers for each day.
The room had a large bed, TV with not many channels but it did have HBO, a room safe (very important consideration for me) and a powerful air conditioner. I had a 2nd floor balcony which would have overlooked the pool except there was a tropical jungle, so I could barely see it. Also, through the trees I could barely see the top of one of the Bangla Road clubs. Not very noisy for being so close. I could occasionally hear a faint drum beat at night, and once a big cheer from all the Aussies watching sports in the bars, but nothing annoying.
The large bathroom is not air conditioned--slits at the top of the wall are open to the outside. So you just have to leave the bathroom door closed.
The girls at the reception desk spoke english well and were helpful with advice. I would recommend this hotel anyway, but at the very low price I think it's a real bargain.
