As well as the intended use as an insulating sleeping bag liner (or if it is the wrong shape put your sleeping bag inside it), this sleep sack could be used as an extra layer in your bed on cold nights, or on its own as a lightweight sleeping bag for camping on warmer summer nights. If you don't have a pillow you could stuff the pillow pocket with clothing to cushion your head, which has the added advantage of keeping your clothes where you can find them in the morning!
Made in licensed character fleece (Spiderman, Sponge Bob....) this is ideal for sleepovers. Another idea would be to keep one or more in the car for emergency use in cold weather.
Only one cut and 4 seams make this a fast (less than 1 hour!), fun, fleecy project!.
Step 1: Materials & Tools
Jersey/stretch/ball point needles to suit your sewing machine
Pins - preferably long
Walking foot for your sewing machine (if available)