Some Democratic agents got resting sacks, cushion and covers, others doughnuts for partners.
Outside Congress, a few hundred weapon control advocates accumulated to voice support for the Democrats, yelling "hold the floor" and "carry out your occupation".
A movement for a brief suspension was passed at around 01:30 neighborhood time (05:30 GMT) and the House then continued at 02:30, with the greater part Republicans voting through various bills.
They then called an intermission until after 4 July, reminding legislators that transmitting pictures and video broke House rules.
Be that as it may, around twelve Democrats stayed on the floor, gushing discourses live. Agent Steve Israel said Democratic administrators had guaranteed to stay during that time and would do as such.
House Minority Leader Nancy Pelosi said: "in light of the fact that they cut and keep running in the corner of night, since they have left doesn't mean we are taking no for an answer."
The BBC's Laura Bicker in Washington says the dissent takes after years of Democrat disappointment at being not able pass stricter weapon control measures.
She says that albeit 100 bills have gone before Congress in the previous five years and all have fizzled, this is a race year and Democrats are making it clear to the electorate that in the event that they need transform, they know which approach to vote in November.
'Tears of misery'
The sit-in is being driven by congressman John Lewis, a veteran of the social equality development of the 1960s.
"What has this body done [to react to the violence]?'' Mr Lewis asked, alluding to a few fizzled endeavors in the previous week to pass a weapon control bill.
"Nothing. We have turned a hard of hearing ear to the blood of innocents. We are ignorant concerning an emergency. Where is our strength? What number of more moms... also, fathers need to shed tears of distress?"
President Barack Obama took to Twitter to express gratitude toward Mr Lewis "for driving on weapon brutality where we require it most".
Republicans rejected the dissent as an exposure stunt.
Agent Kevin Cramer said: "I have no protest to them tricking themselves on TV."
Paul Ryan told CNN he would not bring a weapon control vote in the House.
"They realize that we won't bring a bill that takes away a man's intrinsically ensured rights without... due procedure," he said.
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