Insomnia

Passed by Chijmes on a Wednesday night and noticed a snaking queue? Well, there’s a reason for that. From 9 to 11pm, Insomnia opens its bar for free-flowing booze ($20 per entry) – definitely worth staying awake for. And if you are an expert in nursing that hangover the day after, you’ll be rewarded with 40 per cent off food and drinks from 11am to 9pm every other day. No rest for the wicked!

Source: http://www.timeoutsingapore.com/clubs/venues/drink-cheap/insomnia
Source: http://is.asia-city.com/nightlife/singapore-bar-club/insomnia