a warmly lined or padded body-length bag, usually waterproof and with a closure, in which one or two persons can sleep, especially outdoors, as when camping.
Origin
1815-25
Examples from the web for sleeping bag
Or perhaps you replace the blankets with a sleeping bag.
Sleep in a warm, insulated sleeping bag, as though you are sleeping in a tent without the wind and precipitation.
Unzip your sleeping bag, shake it out and check for bugs.
Place your leather boots between your sleeping bag and liner to dry while you sleep.
Pack your sleeping bag and spend the night at the aquarium, for the sleep with the sharks package.
Don't forget to research the lodging guidelines of the festival to see if you need to bring a tent and sleeping bag.
When you're not staying in a cabin or camper, suitable forms of shelter include a tent and/or sleeping bag.
Purchase a sleeping bag that is appropriate for your chosen weather conditions, as they are rated for different temperatures.
Even if you are renting a cabin or sleeping in your vehicle, you may still need to pack a sleeping bag and pillow.
Everyone has their own system for getting into and out of their sleeping bag.
British Dictionary definitions for sleeping bag
sleeping bag
noun
1.
a large well-padded bag designed for sleeping in, esp outdoors