If your planning to go to Gili Trawangan I think "Dream Village" is a very nice place to stay, it's my favorite place. Vey nice management. There isn't a swimmingpool but the bungalows are not more then 50 meters from the beach and the best snorkeling/swimming area. Plenty of other options thou with swimmingpool. The Beach House, Scullywags, Tir na Noch, Villa Ombak, Villa Almarik and so on.