It’s the chair with the built-in blanket. The super ette Cocoon chair was desiged by Les M for maximum snuggling. I’m not sure if the thickness is more akin to a sleeping bag than a Snuggie, since I’ve never actually used a Snuggie (or at least I’m not willing to admit that I have) but it definitely looks pretty cozy. It doesn’t have the sleeves like a Snuggie though.
Rather than buy an expensive French chair that looks like you threw a Snuggie over it, maybe you could DIY this with a sleeping bag or Snuggie, some duct tape or velcro, and a chair. I’m posting this from my own homemade snuggle chair right now in fact.
Homall Single Recliner Chair Padded Seat PU Leather Living Room Sofa Recliner Modern Recliner Seat Club Chair Home Theater Seating (Black)
PAVILIA Premium Fleece Blanket with Sleeves for Adult, Women, Men | Warm, Cozy, Extra Soft, Microplush, Functional, Lightweight Wearable Throw (Charcoal, Regular Pocket)
MalloMe Single Camping Sleeping Bag - 4 Season Warm Weather and Winer, Lightweight, Waterproof - Great for Adults & Kids - Excellent Camping Gear Equipment, Traveling, and Outdoor Activities