Step 1: Find a Sack
Step 2: Add Pajamas (optional)
Step 3: Sleep like a Baby
Step 4: Dream of Waffles
Hyperlinks:
Technique 4: Sleeping in a Sack with a Velcro Hat
Technique 2: Sack Geometry: The Art of Sack Folding
Technique 1: Sack Sophistry: The Sack as a Philosophical State of Mind
Disclaimer: Sleeping in a sack is not actually a real technique. Or is it?