The place where you fall asleep whilst stumbling home from the bar.
It was cold last night and I went to beer bed in an ATM halfway home from the bar.
by Cool Hand Duke October 24, 2007
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It's the final beer you have in a night. This can be interpreted in two ways.

Literally, it's the beer you enjoy in bed right before you enter your sleep phase.

Figuratively, it's the one last beer before you decide to head home or hit the hay.
Dude 1: Dude, you hit it off pretty early last night.
Dude 2: Yeah man, I grabbed a beer and had a bed beer.
Dude 1: Nice, dude.

or

Dude 1: Dude, you've had like 20 beers tonight.
Dude 2: Don't sweat it, this is my bed beer, I'll be sleeping soon.
Dude 1: Nice, dude.
by Nicholas Richardo December 4, 2009
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A bed beer is a beer one enjoys while laying in bed.
Hey, you wanna lay down with a bed beer?
by dijonaise4life May 22, 2015
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