If your dog is restless in the evening and you are worried about offering something safe, a cardboard foraging box may help support calm sniffing without much cost or cleanup.
Shredder or snuffler: choose the box that fits your dog
Some dogs tear with joy, while others like to nuzzle and lift. Your build should match that style, because comfort comes first and frustration does not help anyone settle.
For a confident shredder, choose a shallow shipping box with low sides and loosely crumpled packing paper. For a cautious snuffler or an older dog with a sore mouth, choose a wider box with very low sides, soft toilet-paper tubes, and treats left mostly visible. Jessica noticed this with Chachi, her 10-year-old neutered male mixed-breed mix in San Bernardino, California, when he would sniff and walk away from tight wads of paper but would keep nosing for a full six minutes when kibble sat between loose folds.
If you are unsure, start with the snuffler version. You can always make the next box harder, and an easy win protects confidence. Guidance from the American Kennel Club often frames enrichment this way, as choice-based activity rather than a test your dog must pass.
You will learn more from one easy box than from a clever box your dog avoids.

Build a simple box in about 15 minutes
You do not need tape, glue, or fancy tools for this. Plain cardboard, paper, and part of dinner are enough.
Start with a clean cardboard box about twice as wide as your dog’s shoulders, with shipping labels and staples removed. Fold the flaps down or cut one side low so your dog can see inside without climbing in. Add three to four layers: crumpled plain packing paper, open toilet-paper tubes, and a small inner box tipped on its side.
Sprinkle in one-third of your dog’s regular kibble rather than extra treats, so the stomach stays comfortable. Tuck a few pieces under paper edges, leave a few in plain sight, and let scent do the teaching. Similar food-puzzle ideas work well alongside a snuffle mat vs lick mat choice when you want a washable option on other days, and many families rotate them with ideas from store-bought vs DIY enrichment.
Supervise the whole time, and remove small torn bits before they are chewed. Advice from VCA Hospitals reminds owners to keep enrichment supervised and to keep cardboard shredding separate from eating nonfood material, which fits well here.
Watch comfort first, then adjust the challenge
Sit nearby on the floor and watch shoulders, breath, and tail. Soft eyes, loose wags, and steady sniffing suggest the activity may help support relaxation. Pawing that turns frantic, hard staring, or trying to eat large pieces of cardboard means the box is too hard or the session has run long.
If your dog empties the box in under three minutes, add one layer next time, not five. If your dog quits early, make the next box easier and scatter a short trail leading in. Dogs that cannot walk far that day often do well with this kind of low-movement nose work, much like the ideas in how to mentally tire a dog that can’t exercise.
A sceptical friend might ask whether cardboard just teaches destruction. In practice, most dogs learn context quickly when one box means shredding is welcome and the couch cushions never do. Keep sessions to five to ten minutes, trade for a final treat before you pick up scraps, and recycle the soggy box.
You will know it is working when your dog sighs and lies down nearby afterward. Keep that easy version on hand for rainy days, vet-recovery weeks, and senior evenings when comfort matters more than cleverness.
For related context, read Chew Toys vs. Puzzle Toys: What Each One Is Actually Doing for Your Dog’s Brain.
For related context, read Food-Dispensing Toys vs Treat Balls: Which One Actually Fits Your Dog.
Sources
- Lifestyle Advice for Dog Owners — American Kennel Club
- Know Your Pet Library — VCA Hospitals