According to a post on Lifehacker.com.au the reason we feel so sluggish and bad after a night out is because we don’t get good enough sleep after drinking.

• Make you bed comfy for you when you get home.
• Eat a well balanced meal.
• Drink plenty of water while drinking alcohol.
• Cut yourself off early.
• Don’t overdose on pain medications.
• Replenish lost nutrients.

These steps will help you sleep better when you get home from your next party.

Source: http://www.lifehacker.com.au/2016/05/how-to-get-a-decent-nights-sleep-after-a-night-of-drinking/