The Bar/Lounge at Mohai Boutique Hotel
The bar/lounge at The Villa Siem Reap is mentioned by travel writers. Of the 3 publications that we monitored, 3 recommended the bar/lounge, such as Rough Guide, Lonely Planet and Oyster.
Mohai Boutique Hotel 
 Rough Guide
 Lonely Planet
 Oyster
 "Facilities include a decent-sized pool with plenty of loungers and a nice little patio restaurant" 
 "Rooms are nicely finished and include a safe and a minibar" 
 "The outdoor pool with lounge chairs is a big plus, and massage services can be arranged"