Icon disambig
For an overview of submachine gun models in the Fallout series of games, see submachine gun.
Gametitle-FNV GRA
Gametitle-FNV GRA

Sleepytyme is a unique weapon in the Fallout: New Vegas add-on Gun Runners' Arsenal.


Sleepytyme blown up

Sleepytyme expanded

The 10mm SMG has a proud history in the wasteland, and this variant continues that tradition of excellence. Its integrated suppressor makes it accurate and deathly quiet. Other modifications boost damage and slightly raise the rate of fire, making this weapon a covert powerhouse. It has also been painted a sleek black color compared to its regular cousin.

Sleepytyme is also considered an improved holdout weapon. It is the only gun that can be used for the Nyah! See? challenge if the Courier does not want to turn any of New Vegas Strip's Three Families hostile. However, during the end of the quest Bye Bye Love, other weapons within the purview of the challenge may be used to kill the Omertas.


Sleepytyme can fire a total of about 2,495 standard rounds, the equivalent of 63 reloads, from full condition before breaking.

Ammunition typeDurability
Standard, HP & JHP249563



Icon melee- Weapon name (melee or unarmed)Icon sequence- Attacks in V.A.T.S.
Icon gun- Weapon name (gun, energy or explosive)Icon action- Action point cost
Icon damage- Damage per attack (damage per projectile)Icon dap- Damage per action point
Icon dps- Damage per secondIcon spread- Weapon spread
Icon explosion- Area of effect damageAssault carbine extended magazines- Magazine capacity (shots per reload)
Icon effect- Effect damage & durationIcon repair- Durability (number of attacks before breaking)
Icon bonus effect- Bonus effectsIcon weight- Weight
Icon attack- Attacks per secondIcon merchant- Value in caps
Icon chance- Critical chance % multiplierIcon ratio- Value to weight ratio
Icon critical damage- Critical damageIcon ability- Skill required
Icon crit effect- Critical effect damage & durationIcon fist- Strength required
Icon plus- With all mods attached
Icon gunIcon damageIcon dpsIcon attackIcon chanceIcon critical damageIcon sequenceIcon actionIcon dapIcon spreadAssault carbine extended magazinesIcon repairIcon weightIcon merchantIcon ratioIcon abilityIcon fist
10mm submachine gun 19
10mm submachine gun Icon plus 19
Sleepytyme Gametitle-FNV GRA22



  • PCIcon pc Playstation 3Icon ps3 Xbox 360Icon xbox360 When shooting, there may be a split-second delay where the firing animation will play, but no bullets will be fired. [verified]
  • Playstation 3Icon ps3 Sometimes when reloading no reloading animation will be performed, but the gun will be reloaded. [verified]




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