Sleep Net

No, seriously. Sleep Nets.

Sleep Nets are a devious Decepticon device, capable of knocking an Autobot warrior unconscious at a moment's notice. The device is even more effective against humans.

Fiction

Coloring books

Starscream and Thundercracker used Sleep Nets to capture Sideswipe and Bluestreak. The nets also knocked out Sparkplug Witwicky, but the Decepticons left him behind. Bumblebee to the Rescue!

Animated cartoon

Lockdown keeps a few sleep nets up his sleeve. Whether they make his bounties go, "ZZZZZZZZ!" remains to be seen. Transformers Animated: The AllSpark Almanac

Notes

• While Bluestreak could mildly protest the effect of the Sleep Nets, Sparkplug was merely able to snore loudly.