The Snuddie is a low cost alternative to the Oodie that is similar in design. The main differences are: 1. Materials: The Snuddie uses brushed polyester while the Oodie uses sherpa and flannel. The Oodie tends to be thicker and warmer. 2. Construction: The Oodie is better made with more structure while the Snuddie drapes looser. 3. Hood: The Oodie has a roomier hood for better coverage. 4. Cuffs: The Oodie has ribbed cuffs to seal in warmth while the Snuddie has open sleeves. 5. Price: The Snuddie costs around $25 while the Oodie starts around $80. Overall, the Oodie has an edge in terms of quality, construction, and materials compared to the budget Snuddie. But for the price, the Snuddie can be a decent lower cost substitute.