go to bed
turn in *
bed ****
crawl in
kip down
hit the hay
hit the sack
sack out
go to sleep
retire ***

The bulletin came in at 2200 hours, when you were sacked out.

I moved to the living room, kicked off my shoes, and sacked out on a couch.

Two hours after he sacked out, they had a simulated night attack.

A fourth, perhaps to make better use of his time, was sacked out on the ground.

We were going in soon after most ogres had sacked out.

The rest of the guys sacked out after we'd eaten, but I wasn't really sleepy.

A few passengers with no place better to go were sacked out on the floor.

Sacking out on a couch or floor inside a luxury hotel did not seem likely to give either one of them a problem.

The sailor he'd talked with the last time he sacked out laughed.